An 8 kg ball is moving at 4 m/s. Work is done on the ball to give it a speed of 12 m/s. What is the ball's initial kinetic energy? What is the ball's final kinetic energy? What work was done on the ball?

Answer 1

KE(ini) =mv₁2 =8•4²/2=…
KE(fin)= mv₂²/2 =8•12²/2=….
W= KE(fin)- KE(ini)= …

Answer 2

KE(ini) =mv₁²/2 =8•4²/2=…

Answer 3

thekinetic energybefore and afater the collision

Answer 4

You did not mention any collision in the problem statement. Can you please provide more information so that I can help you accurately?