Answer :
Answer:
945 J
Explanation
You have just given the ball kinetic energy, which is given by the following equation:
Ek=0.5xm×v2
So the energy the ball has the moment after you hit it is:
Ek=0.5×2.1×(30)2<— square
Ek=945J
945 J
Explanation
You have just given the ball kinetic energy, which is given by the following equation:
Ek=0.5xm×v2
So the energy the ball has the moment after you hit it is:
Ek=0.5×2.1×(30)2<— square
Ek=945J