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Kinetic Energy

Last updated almost 5 years ago

4 questions

1

Question 1

1.

The black-tailed jackrabbit of the American Southwest can run at speeds up to 12.0 m/s. What is the kinetic energy of a jackrabbit with a mass of 3.00 kg running at top speed?

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Question 2

2.

In women's fastpitch softball, the pitcher throws the ball at 30.0 m/s. The ball has a mass of 1.08 kg. What is the kinetic energy of the softball?

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Question 3

3.

A woman from Italy set a record in one-hour running by running 18 km in 1 h. If the woman´s kinetic energy was 694 J, what was her mass?. (Remember v=d/t).

Question 4

4.

In 2005, Sarah Clement of France reached a record speed in downhill skiing. If Clement’s mass was 52.0 kg, her kinetic energy would have been 9.96x10^4 J. What was her speed?