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The kinetic energy acquired by a body of...

The kinetic energy acquired by a body of mass m in travelling a certain distance starting from rest, under a constant force is

A

directly proportional to m

B

directly proportional to `sqrt(m)`

C

inversely porportional to `sqrt(m)`

D

independent of m

Text Solution

Verified by Experts

The correct Answer is:
D
`K_(2)-K_(1)=W=Fs`
`K_(2)-0=Fs`
K is independent of m. (From is constant)
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MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-FORCE-Exercise 1
  1. The force F acting on a particle is moving in a straight line as shown...

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  2. If the force acting on a body is inversely proportional to its speed, ...

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  3. The kinetic energy acquired by a body of mass m in travelling a certai...

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  4. Under the action of a force, a 2 kg body moves such that its position ...

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  5. An object of mass 5 kg is acted upon by a force that varies with posit...

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  6. A block of mass 20 kg is moving in x-direction with a constant speed o...

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  7. In an elastic collison

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  8. If a body of mass m collides head on, elastically with velocity u with...

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  9. Two perfectly elastic particles A and B of equal masses travelling alo...

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  10. The collision of two balls of equal mass takes place at the origin of ...

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  11. A smooth sphere of mass M moving with velocity u directly collides ela...

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  12. A body of mass m moving with velocity v collides head on with another ...

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  13. The position of centre of mass of system of particles at any moment do...

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  14. In a carbon monoxide molecule, the carbon and the oxygen atoms are sep...

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  15. Two bodies of masses 1kg and 2kg are lying in xy plane at (-1,2) and (...

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  16. Figure shows a composite system of two uniform rods of lengths as indi...

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  17. Three point masses m(1), m(2) and m(3) are placed at the corners of a ...

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  18. The torque of a force F = - 6 hat (i) acting at a point r = 4 hat(j) a...

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  19. Moment of a force of megnitude 20 N acting along positive x direction ...

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  20. The torque of force F = -3 hat(i)+hat(j) + 5 hat(k) acting on a point ...

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