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Recent questions tagged newtons-second-law
Questions
Two blocks (m$_1$) and (m$_1$), where m$_1 \gt\;$ m$_2$ are connected as shown on frictionless surface. Find the common acceleration of the masses, ignoring any friction effects.
cl52603
jeemain
physics
class11
ch5
laws-of-motion
easy
newtons-second-law
fbd
connected-motion
frictionless-pulley
asked
Aug 20, 2014
by
balaji.thirumalai
1
answer
The device shown here is called an Atwood's machine. m$_1$ and m$_2$ are suspended at the ends of a string of negligible mass passing over a friction-less pulley as shown here. What is the acceleration in the light cord that connects the two masses if $\;m_1 = 2 m_2$?
jeemain
physics
class11
ch5
laws-of-motion
easy
newtons-second-law
fbd
connected-motion
frictionless-pulley
asked
Aug 20, 2014
by
balaji.thirumalai
1
answer
A 5-kg block (m$_1$) and 2-kg block (m$_2$) are connected as shown on frictionless surface. Find the tension in the rope connecting the two blocks. Ignore any friction effects.
jeemain
physics
class11
ch5
laws-of-motion
medium
newtons-second-law
fbd
connected-motion
frictionless-pulley
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
A cord passing over a frictionless, massless pulley (Atwood's machine) has a $m_2 =$ 10-kg block tied to one end and a $m_1 =$ 12-kg block tied to the other. If at the end of 3 seconds the string is cut, find the distances moved by the masses $d_1$ and $d_2$ in the next 6 seconds.
cl52593
cl11153
jeemain
physics
class11
ch5
laws-of-motion
difficult
newtons-second-law
fbd
connected-motion
frictionless-pulley
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
The device shown here is called an Atwood's machine. m$_1$ and m$_2$ are suspended at the ends of a string of negligible mass passing over a friction-less pulley as shown here. What is the tension in the light cord that connects the two masses?
cl52593
cl11153
jeemain
physics
class11
ch5
laws-of-motion
easy
newtons-second-law
fbd
connected-motion
frictionless-pulley
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
The system on the left shown here is called an Atwood's machine. m$_1$ and m$_2$ are suspended at the ends of a string of negligible mass passing over a friction-less pulley as shown here. The system on the right just has a hanging mass m. What should m be in terms of m$_1$ and m$_2$ so that the tension in the top string is the same in both cases? Assume that the two systems have equal downward acceleration (a').
cl11153
jeemain
physics
class11
ch5
laws-of-motion
difficult
newtons-second-law
fbd
connected-motion
frictionless-pulley
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
The device shown here is called an Atwood's machine. m$_1$ and m$_2$ are suspended at the ends of a string of negligible mass passing over a friction-less pulley as shown here. How far will m$_1$ fall in time $t$ after the system is released?
cl52593
cl11153
jeemain
physics
class11
ch5
laws-of-motion
easy
newtons-second-law
fbd
connected-motion
frictionless-pulley
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
The device shown here is called an Atwood's machine. m$_1$ and m$_2$ are suspended at the ends of a string of negligible mass passing over a friction-less pulley as shown here. What is the acceleration and the tension in the light cord that connects the two masses if m$_1$ = 12 kg and m$_2$ = 4 kg?
cl11153
jeemain
physics
class11
ch5
laws-of-motion
easy
newtons-second-law
fbd
connected-motion
frictionless-pulley
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
What is the normal force on the object of mass m$_1$ (20 kg) shown in the diagram? What is the acceleration of the object?
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
medium
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
You are thrown from a bicycle and skid in a straight line to a complete stop on a rough road at t a distance of 3.5 m along a straight line. What average force did the road exert on your body if your mass is 70 kg and your initial speed was 30 km/h?
cl52585
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
A crate with mass 32.5 kg initially at rest on a warehouse floor is acted on by a net horizontal force of 140 N. How far does the crate travel in 10.05 s?
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
If a net horizontal force of 130 N is applied to a person with mass 60 kg who is resting on the edge of a swimming pool, what is the horizontal acceleration produced?
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
Consider a block of mass 5 kg on a table top initially at rest. Assume that the surface is frictionless. Let a pushing force of 50 N directed at an angle of 30$^\circ$ below the horizontal act on the block. Find the acceleration of the block and the normal force that the table exerts on the block.
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
medium
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
Consider a box of mass 10 kg being lifted upward by a person standing on the surface of the earth. At a given instant the box is being accelerated upwards with an acceleration of size 5 m/s$^2$. Find the force that the person exerts on the box at this instant.
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
Imagine you are standing on a cardboard box that is only just strong enough to support your weight. What would happen to it if you tried to jump into the air? The cardboard box would
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
An object experiences an acceleration of magnitude $3.75 m/s^2$. Calculat the mass of the object given there are three forces acting on an object as follows:
cl52566
cl52564
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
A force applied to an object of mass $\text{m1}$ produces an acceleration of 3.00 ms$^{-2}$. The same force applied to a second object of mass $\text{m2}$ produces an acceleration of 1.00 ms$^{-2}$. If the two masses are combined into one object, what is the acceleration under the action of the force?
cl52564
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
A force applied to an object of mass $\text{m1}$ produces an acceleration of 3.00 ms$^{-2}$. The same force applied to a second object of mass $\text{m2}$ produces an acceleration of 1.00 ms$^{-2}$. What is the value of the ratio $\large\frac{\text{m1}}{\text{m2}}$?
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Aug 19, 2014
by
balaji.thirumalai
1
answer
A man fires the bullet of mass m each with a velocity v from a machine gun. If he fires n bullets every second, the reactional force per second on the man will be
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Jul 4, 2013
by
meena.p
1
answer
A force of $(6 \hat i+8 \hat j) N $ acted on a body of mass 10 kg.The displacement after 10 sec. if it starts from rest will be
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Jul 4, 2013
by
meena.p
1
answer
Two bodies of masses m$_1$ (4 kg) and m$_2$ (3 kg) are suspended at the ends of a string of negligible mass passing over a friction-less pulley as shown here.The acceleration of the system is
jeemain
physics
class11
ch5
laws-of-motion
easy
newtons-second-law
fbd
connected-motion
frictionless-pulley
asked
Jul 4, 2013
by
meena.p
1
answer
The linear momentum p of a moving body varies with time according to equation $p=a+bt^2$ where a,b are constants. Net force acting on the body is
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Jul 4, 2013
by
meena.p
1
answer
A man of weight 1 mg is moving up in a rocket with an acceleration 4g. The apparent weight of the man in the rocket is
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Jul 4, 2013
by
meena.p
1
answer
If the tension in the cable of $1000 \;kg$ elevator is $1000\;kg$ weight, the elevator
jeemain
physics
class11
ch5
laws-of-motion
easy
newtons-second-law
asked
Jul 4, 2013
by
meena.p
1
answer
A pendulum is released from $\theta_0=60 ^{\circ}$. The rate of change of speed of bob at $\theta=30 ^{\circ}$ is $(g=10 m/s^2)$
jeemain
physics
class11
ch5
laws-of-motion
newtons-second-law
easy
asked
Jul 1, 2013
by
meena.p
1
answer
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