Prove law of conservation of momentum ,??​

Explanation:

BEFORE COLLISION) INITIAL MOM. OF BODY A

PiA = m1u1

After collision) .................. B I. e piB = m2u2

FINÅL MOMENTUM OF BØDY A I. e PfA= m1v1

FINAL .......... B I. e PfB = m2v2

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4. 50x10= 500m/s 5. 52m/s

W= fd
where f is an applied force and d is the distance over which it is applied. when a parachuting skydiver is at constant velocity, he is experiencing "terminal velocity", the point at which his acceleration down is canceled out by air resistance. that means that the resisting force of the air is equal to his weight, but in the opposite direction. with this, we can solve for the work done by the force.
w = fd
w = (92.0)(9.81 m/s^2) (325)
w= 2.93 x 10^5 j
the value for work in this case is positive because it is pushing up on the skydiver, who has a downward force of gravity.
therefore the answer is 2.93 x 10^5 j