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Momentum is the ability of imparting or ...

Momentum is the ability of imparting or tending to motion to other bodies. The total momentum of a system remains conserved if no external force is acting it. This is calculated by the formula, `vecp=mvecv`. Consider a situation where a cart carrying five boys is moving without friction due to inertia along a straight horizontal road, with a speed of `10m//s`. After travelling certain distance, a boy jumps from the cart with a speed of `2m//s with respect to the cart in opposite direction to it. Then, second boy jumps with the same speed w.r.t. the cart, but in a perpendicular direction to the cart. The mass of the cart is 100 kg and mass of each boy is 20 kg.
The speed of the cart after second boy jumps will

A

change along its initial direction

B

will not change along its initial direction

C

will change in opposite direction to that of initial direction

D

can't be calculated

Text Solution

Verified by Experts

The correct Answer is:
B
He will give impulse `_|_`to initial direction.
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