Physical Science
posted by Tyra J on .
If you roll a 5.0 kg bowling ball down the alley at 10.0 m/s, how much work did you do on the ball?
a). 250 J
b). 490 J
c). 2500 J

Compute the kinetic energy of the ball, (1/2) M V^2. That will be the answer.

25000

If you roll a 5.0 kg bowling ball down the alley at 10.0 m/s, how much work did you do on the ball?

you do 600 J of work hoisting a 2 kg bale of hay, to what height did you lift it

A 250.0 kg roller coaster car has 20,000.0 J of potential energy at the top of the hill. Neglecting frictional losses, what is the velocity of the car at the bottom of the hill?

How long would it take a 20.0 hp motor to lift a 1,000.0 kg crate from the bottom of a freighter's hold to the deck (40.0 m)?

. you roll a 5.0 kg bowling ball down the alley at 10.0 m/s, how much work did you do on the ball?

2500 J

A 250.0 kg roller coaster car has 20,000.0 J of potential energy at the top of the hill. Neglecting frictional losses, what is the velocity of the car at the bottom of the hill?

250