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Recent questions tagged work-energy-theorem
Questions
It is well known that a raindrop falls under the influence of the downward gravitational force and the opposing resistive force. The latter is known to be proportional to the speed of the drop but is otherwise undetermined. Consider a drop of mass 1.00 g falling from a height 1.00 km. It hits the ground with a speed of $50.0 m s^{-1}$.What is the work done by the unknown resistive force?
jeemain
physics
class11
work-power-energy
ch6
work-energy-theorem
easy
asked
Aug 28, 2014
by
sreemathi.v
1
answer
It is well known that a raindrop falls under the influence of the downward gravitational force and the opposing resistive force. The latter is known to be proportional to the speed of the drop but is otherwise undetermined. Consider a drop of mass 1.00 g falling from a height 1.00 km. It hits the ground with a speed of $50.0 m s^{-1}$.What is the work done by the gravitational force
jeemain
physics
class11
work-power-energy
ch6
work-energy-theorem
easy
asked
Aug 28, 2014
by
sreemathi.v
1
answer
A spherical ball of mass 20kg is stationary at the top of a hill of height 100m.It rolls down a smooth surface to the ground and then climbs up another hill of height 30m and finally rolls down to a horizontal base at a height of 20m above the ground.The velocity attained by the ball is
jeemain
physics
class11
work-power-energy
ch6
work-energy-theorem
easy
asked
Aug 28, 2014
by
sreemathi.v
1
answer
If the unit of force and length each increased by 4 times , then the unit of energy is increased by
jeemain
physics
class11
ch6
work
work-energy-theorem
work-power-energy
q18
easy
dimensional-formulae-and-analysis
units-and-measurements
asked
Jul 18, 2013
by
meena.p
1
answer
An object of mass 1 kg travelling at 5.0 m/s enters a region of ice where the coefficient of kinetic friction is .10. Find the distance the object travels before coming to rest.
jeemain
physics
class11
ch6
work
work-energy-theorem
work-power-energy
q13
easy
asked
Jul 17, 2013
by
meena.p
1
answer
Displacement of a body of mass 2 kg varies with time as $s=t^2+2t$.Where s in meters t in seconds. The work done by the force acting an body during the time t=2s to t=4s is
jeemain
physics
class11
ch6
work-power-energy
q5
work
kinetic-energy
easy
work-energy-theorem
variable-force
asked
Jul 17, 2013
by
meena.p
1
answer
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