Email
Chat with tutors
Login
Ask Questions, Get Answers
Menu
X
home
ask
tuition
questions
practice
papers
mobile
tutors
pricing
X
Recent questions tagged speed-and-velocity
Questions
The position of a particle moving along the $x$-axis ($x$ is in $m$) is given by $x = t^3 - 3t^2 + 2t$. Find the average speed of the particle in the interval $t=2\;s \rightarrow t = 4\;s$
cl52417
speed-and-velocity
jeemain
physics
class11
kinematics
ch3
motion-in-a-straight-line
easy
asked
Aug 12, 2014
by
balaji.thirumalai
1
answer
The position of a particle moving along the $x$-axis ($x$ is in $m$) is given by $x = t^3 - 3t^2 + 2t$. Find the velocity of the particle at $t=2\;s$.
speed-and-velocity
jeemain
physics
class11
kinematics
ch3
motion-in-a-straight-line
easy
asked
Aug 12, 2014
by
balaji.thirumalai
1
answer
A body covers a certain distance x in equal thirds - the first third of distance with speed v$_1$, the second third with a speed of v$_2$ and the last third with a speed of v$_3$. What is the average speed of the body over time?
jeemain
physics
class11
kinematics
ch3
motion-in-a-straight-line
speed-and-velocity
average-speed
easy
asked
Aug 11, 2014
by
balaji.thirumalai
2
answers
A body travels first half a distance with velocity v$_0$. The remaining distance was covered with velocity v$_1$ for half the time and v$_2$ for the remaining time. Find the average velocity over the whole time of motion?
jeemain
physics
class11
kinematics
ch3
motion-in-a-straight-line
speed-and-velocity
easy
asked
Aug 11, 2014
by
balaji.thirumalai
1
answer
Consider the following one-dimensional motion.A spacecraft drifts through space at constant velocity. Which of the following statements are true?
cl52390
cl52389
jeemain
physics
class11
kinematics
ch3
motion-in-a-straight-line
speed-and-velocity
easy
average-velocity
instantaneous-velocity
asked
Aug 11, 2014
by
balaji.thirumalai
1
answer
Consider the following one-dimensional motion. A race car starts from rest and speeds up to 100 m/s. Which of the following statements are true?
cl52389
jeemain
physics
class11
kinematics
ch3
motion-in-a-straight-line
speed-and-velocity
easy
average-velocity
instantaneous-velocity
asked
Aug 11, 2014
by
balaji.thirumalai
1
answer
Consider the following one-dimensional motion. A ball thrown directly upward rises to a highest point and falls back into the thrower’s hand. Which of the following statements are true?
jeemain
physics
class11
kinematics
ch3
motion-in-a-straight-line
speed-and-velocity
easy
motion-under-gravity
asked
Aug 11, 2014
by
balaji.thirumalai
1
answer
A train travels first one third of the distance on a straight track with velocity$10km h^{-1}$ next one third with velocity $20 kmh^{-1}$ and the last portion with velocity $60 kmh^{-1}$. What is the average velocity of the train for the whole journey ?
jeemain
physics
class-11
unit2
ch3
kinematics
motion-in-a-straight-line
speed-and-velocity
average-velocity
asked
Jul 18, 2014
by
meena.p
1
answer
A car travels along straight road for the first half-time with a velocity $v_1$ and the second half-time with velocity $v_2$ The average velocity of cars is
jeemain
physics
class-11
unit2
ch3
kinematics
motion-in-a-straight-line
speed-and-velocity
easy
average-velocity
asked
Jul 10, 2014
by
meena.p
1
answer
A police jeep is chasing with velocity $45 km/hr$ a thief in another jeep moving with velocity $153\;km/hr$. The police fires a bullet with muzzle velocity 0f $180\; m/s$. The velocity with which it will strike the car of the thief is
jeemain
physics
class11
ch3
kinematics
motion-in-a-straight-line
speed-and-velocity
easy
asked
Jul 3, 2013
by
meena.p
1
answer
A man moves along x axis such that velocity $v=\large\frac{1}{x}$. If he is initially at $x=2 m$ find the time when he reaches $x=4m$
jeemain
physics
class11
unit2
kinematics
motion-in-a-straight-line
speed-and-velocity
easy
asked
Jun 28, 2013
by
meena.p
1
answer
The figure gives the speed-time graph of the motion of a car. What is the ratio of the distance travelled by car during the last two seconds to total distance travelled in seven seconds
jeemain
physics
class11
ch3
kinematics
motion-in-a-straight-line
speed-and-velocity
medium
motion-in-a-straight-line-graphs
speed-time-graph
cbse11
ch2
motion-in-straight-line
asked
Jun 27, 2013
by
meena.p
1
answer
A 2m wide truck is moving with a uniform speed of $v_0=8 m/s$ along a staright horizontal road. A pedestrian starts to cross the road with a uniform speed of v when the truck is 4m away from him. The minimum value of 'v' so that he can cross the road safely is
jeemain
physics
class11
unit2
kinematics
motion-in-a-straight-line
speed-and-velocity
difficult
asked
Jun 25, 2013
by
meena.p
1
answer
A body travelling along a straight line traversed one third of the total distance with velocity 4 m/s. The remaining part of distance was covered with a velocity $2 m/s$ for half the time and with velocity 6 m/s for other half of time. the mean velocity averaged over whole time of motion.
jeemain
physics
class11
unit2
kinematics
motion-in-a-straight-line
speed-and-velocity
difficult
asked
Jun 25, 2013
by
meena.p
1
answer
A ball is dropped vertically from a height 'd' above the ground. it hits the ground and bounces up vertically to a height $d/2$ neglecting air resistance its velocity 'v' varies with height 'h' above the ground as
jeemain
physics
class11
unit2
kinematics
motion-in-a-straight-line
speed-and-velocity
difficult
asked
Jun 24, 2013
by
meena.p
1
answer
The displacement x of a particle varies with time 't' as $x=ae^{-\alpha t}+b e^{\beta t}$ where $a,b,\alpha, \beta$ are positive constants. The velocity of the particle will
jeemain
physics
class11
unit2
kinematics
motion-in-a-straight-line
speed-and-velocity
medium
asked
Jun 23, 2013
by
meena.p
1
answer
Two boys are standing at ends A and B of a ground where AB=a. The boy at B starts running in a direction perpendicular to AB with a velocity v$_1$. The boy at A starts running simultaneously with velocity v and catches the other boy in a boy in a time t. Calculate t in terms of a, v and v$_1$.
jeemain
physics
class11
ch3
kinematics
motion-in-a-straight-line
speed-and-velocity
easy
asked
Jun 21, 2013
by
meena.p
1
answer
A particle moves along a semicircle of radius 10 m in 5 seconds. The average velocity of the particle in m/s is?
jeemain
physics
class11
kinematics
ch3
motion-in-a-straight-line
speed-and-velocity
q7
easy
asked
Jun 20, 2013
by
meena.p
1
answer
The correct statement from the following is
jeemain
physics
class11
unit2
kinematics
motion-in-a-straight-line
speed-and-velocity
q6
easy
asked
Jun 20, 2013
by
meena.p
1
answer
A body covers half of the journey at 40km/hr and seconds half at 60 km/hr speed. Find the average speed of the whole journey
jeemain
physics
class11
kinematics
ch3
motion-in-a-straight-line
speed-and-velocity
easy
asked
Jun 19, 2013
by
meena.p
1
answer
To see more, click for the
full list of questions
or
popular tags
.
Home
Ask
Tuition
Questions
Practice
Your payment for
is successful.
Continue
...