Answer to Question #140871 in Classical Mechanics for Elleb J.

Question #140871

 A baseball bat with 100. J of energy strikes a ball with a mass of 150. g. The energy transfer is only 20.0 % efficient. Calculate the initial speed of the ball.


1
Expert's answer
2020-10-29T07:01:22-0400

A=Q+EkA = Q+E_k

Ek=20A100=20 JE_k = \frac{20*A}{100}=20\text{ J}

Ek=mV22; V=Ek2m=2020.150=16.33 msE_k=\frac{mV^2}{2};\ V=\sqrt{\frac{E_k*2}{m}}=\sqrt{\frac{20*2}{0.150}}= \approx16.33\ \frac{m}{s}

Answer:V=16.33 msV= \approx16.33\ \frac{m}{s}


Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be the first!

Leave a comment