Starting from rest, a 2.1x10-4 kg flea springs straight upward. while the flea is pushing off from the ground, the ground exerts an average upward force of 0.41 n on it. this force does 3.7x10-4 j of work on the flea. (a) what is the flea's speed when it leaves the ground? (b) how far upward does the flea move while it is pushing off? ignore both air resistance and the flea's weight.

1.327363 m/s

0.00090243 m

Explanation:

u = Initial velocity

v = Final velocity

m = Mass of flea

Energy

The velocity of the flea when leaving the ground is 1.327363 m/s

The flea will travel 0.00090243 m upward

where’s the list ? the question is incomplete

the force represented by vector a is normal force. if the hockey puck is moving to the right, when it is hit with a significant force by the hockey stick the puck will move off in a different direction. correct on edge.