a ball of 0.900 kg slides horizontally over a frictionless surface and bumps into a heavy stone at a speed of 20.0 m / s. the ball returns with 70.0% of its initial kinetic energy. how big is the change in the impulse of the stone?

33.06 Kgm/s

Explanation:

Given information

Initial velocity= 20 m/s

mass, m=0.9 Kg

Here, v is -16.7332 m/s in opposite direction

Change in momentum

Therefore, the magnitude of change in momentum is 33.06 Kgm/s

answer:

d. attempt to find the owner, then leave your information if you cannot find them.

explanation:

d. represents both (b) and (c).

more logical as well.

b and c are to complicated.

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