a 0.32 kg ball is thrown with a speed of 11.5 m/s, how much kinetic energy does the ball have?

Question

a 0.32 kg ball is thrown with a speed of 11.5 m/s, how much kinetic energy does the ball have?

Answer 1

Use kenetic energy formula.

 

KE = mv²/2 where m is mass (0.32kg) and v is velocity (11.5m/s)

 

KE = (0.32kg)(11.5m/s)²/2⇒ 21.16kgm²/s² or 21.16N