Home
Class 11
PHYSICS
The displacement of a body of mass 2 kg ...

The displacement of a body of mass `2 kg` varies with time `t` as `S = t^(2) + 2t`, where `S` is in seconds. The work done by all the forces acting on the body during the time interval `t = 2s` to `t = 4s` is

A

36 J

B

64 J

C

100 J

D

120 J

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • WORK, POWER AND ENERGY

    DC PANDEY|Exercise A Only One Option is Correct|42 Videos
  • WORK, POWER AND ENERGY

    DC PANDEY|Exercise B More than One Option is Correct|26 Videos
  • WORK, ENERGY AND POWER

    DC PANDEY|Exercise MEDICAL ENTRACES GALLERY|33 Videos

Similar Questions

Explore conceptually related problems

The displacement of a body of mass 2 kg veries with time t as S = t^(2) + 2t , where S is in seconds. The work done by all the forces acting on the body during the time interval t = 2s to t = 4s is

The displacement of a body of mass 2kg varies as S=t^(2)+2t .Where S is in meters and t is in second.The work done by all the forces acting on the body during the time interval t=0 to t=3s is ?

A point mass of 0.5 kg is moving along x- axis as x=t^(2)+2t , where, x is in meters and t is in seconds. Find the work done (in J) by all the forces acting on the body during the time interval [0,2s] .

If displacements of a particle varies with time t as s = 1/t^(2) , then.

Find average speed in time interval t= 2 to t=10s

Displacement of a particle of mass 2 kg varies with time as s=(2t^(2)-2t + 10)m . Find total work done on the particle in a time interval from t=0 to t=2s .

The displacement of an object of mass 3 kg is given by the relation S=(1)/(3)t^(2) , where t is time in seconds. If the work done by the net force on the object in 2 s is (p)/(q) joule, where p and q are smallest integer values, then what is the value of p+q ?

The displacement of a particle of mass 2kg moving in a straight line varies with times as x = (2t^(3)+2)m . Impulse of the force acting on the particle over a time interval between t = 0 and t = 1 s is

A particle of mass 3 kg is moving along x - axis and its position at time t is given by equation x=(2t^(2)+5)m . Work done by all the force acting on it in time interval t=0 to t=3s is