A particle of mass m at rest in acted up...

A particle of mass m at rest in acted upon by a force P for a time t. its kinetic energy after an interval t is

`(P^2t^2)/(m)`

`(P^2t^2)/(2m)`

`(P^2t^2)/(3m)`

`(Pt)/(2m)`

Text Solution

Verified by Experts

The correct Answer is:

Topper's Solved these Questions

WORK AND ENERGY
CHHAYA PUBLICATION|Exercise EXERCISE (Very short Answer Type Questions)|30 Videos
WORK AND ENERGY
CHHAYA PUBLICATION|Exercise EXERCISE (short Answer Type Questions-I)|10 Videos
WORK AND ENERGY
CHHAYA PUBLICATION|Exercise HIGHER ORDER THINKING SKILL (HOTS) QUESTIONS|38 Videos
WBCHSE QUESTION PAPER -2019
CHHAYA PUBLICATION|Exercise SECTION - II ( GROUP -D)|10 Videos

Similar Questions

Explore conceptually related problems

A force F acts on a stationary body of mass m for a time t. Show that, the kinetic energy of the body iin that time =(F^2t^2)/(2m) .

A particle of mass m accelerating uniformly has velocity v at time t_1 . What is work done in time t?

A particle of mass m executes SHM with amplitude a and frequency n. What is the average kinetic energy of the particle during its motion from the position of equilibrium to the end?

A body of mass 6 kg is acted upon by a force which causes a displacement in it given by x = t^2/4 meter, where t is the time in second. The work done by the force in 2 seconds is

A particle executing SHM starts from one end of its path. If the time period of the particle is T, then what will be the ratio of its kinetic energy and potential energy after a time of T/12 ?

A particle of mass m has momentum p. What is its kinetic energy ?

A particle of mass M and charge q is released from rest in a region of uniform electric field of magnitude E. After a time t, the distance travelled by the charge is S and the kinetic energy attained by the particle is T. Then, the ratio T/S

A particle of mass m is driven by a machine that delivers a constant power k watts. If the particle starts from rest the force on the particle at time t is

CHHAYA PUBLICATION-WORK AND ENERGY-EXERCISE (Multiple Choice Questions)

A machine, applying a constant power is driving an object along a stra...
Text Solution
|
A windmill generates electrical energy. Suppose, the windmill converts...
Text Solution
|
A particle moves with a velocity 5hati -3hatj+6hatkm//s under the infl...
Text Solution
|
A quater horse power motor runs at a speed of 600 rpm. Assuming 40% ef...
Text Solution
|
Energy of a body thrown upward is
Text Solution
|
A particle is moving in a straight line such that its retardation is ...
Text Solution
|
Starting from rest a car moves on a plane. The coefficient of friction...
Text Solution
|
A particle falls from rest under the action of gravity . Variation of ...
Text Solution
|
A long spring is stretched by 2 cm. its potential energy is U . If th...
Text Solution
|
In which of the following cases the potential energy is defined
Text Solution
|
A body of mass m thrown vertically upwards attains a maximum height h....
Text Solution
|
For a moving particle (mass m, velocity v) having a momentum p, which...
Text Solution
|
The potential energy of a system increases if work is done
Text Solution
|
Two bodies of masses 4 kg and 5kg are moving with equal momentum. The...
Text Solution
|
A particle of mass m at rest in acted upon by a force P for a time t. ...
Text Solution
|
If the linear momentum of a body is increased by 50% , then the kineti...
Text Solution
|
one end of a thead of length h has a stone tied to it . Taking the ot...
Text Solution
|
Along the surface of a hemispherical container, a small ball is pushed...
Text Solution
|
A bucket full of water is rotated in a vertical circle of radius r. i...
Text Solution
|
A ball with a momentum p falls on a floor vertically and bounces a num...
Text Solution
|