An elephant and a mouse would both have zero weight in gravity-free space. if they were moving toward you with the same speed, would they bump into you with the same effect? explain.

The elephant and the mouse having zero weight in a gravity free space will not bump into you at the same effect.

Explanation:

When both are in a gravity free space, the weights are zero, as we know that the

But when they will acquire the speed of same magnitude, say v, their different masses will acquire different momentum, which will make the difference in effect while bumping.  

And as we know  Therefore, effect of impact by elephant will be more than that of mouse . An elephant breaking into you will take you back faster than a mouse in space hits you.