3 years ago

A ball is rolling a 5 m/s down a hill the ball has 20 J of energy what is the mass of the ball

Physics

1 answer:

Dmitriy789 [7]3 years ago

7 0

Its 1.6 kg

Remember

E = 1/2mv^2 is the kinetic energy of the ball. The energy is given to you so you need to solve for mass. Rearranging the equation gives you 2E/v^2 = 1.6

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2 years ago

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3 years ago

What is 0.0025 m^2 in cm^2? 1m = 100cm.

PSYCHO15rus [73]

Answer:

25 cm²

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