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Y_Kistochka [10]

2 years ago

8

A 2.0-kg ball is at rest when a horizontal force of 5.0 N is applied. In the absence of friction, what is the speed of the ball

after it ha gone 10 m?

1 answer:

Rzqust [24]2 years ago

7 0

Answer:

v = 7.1 m/s

Explanation:

Work applied will change kinetic energy

Fd = ½mv²

v = √(2Fd/m) = √(2(5.0)(10) / 2.0) = √50 = 7.07... m/s

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3 years ago

A 500 W hair dyer is used to dry hair for 6 minutes a day for 3 days. How much energy is used? A laptop uses 75 W. The cot of el

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Answer:

See the answers below.

Explanation:

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2 years ago

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2 years ago