3 years ago

How much work would I do if I pushed an object with a force of 64 a distance of 11 m

Physics

1 answer:

Rainbow [258]3 years ago

6 0

Answer:

Work=Force×distance

Explanation:

work=force×distance

force=64N

distance=11m

work=64×11=704Joules

Remember unit of work is Joules or Newton metre(N/m).

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3 years ago

An ice skater spins at 2.5 rev/s when his arms are extended. He draws his arms in and spins at 10.0 rev/s. By what factor does h

Rainbow [258]

Answer:

The moment of inertia decreased by a factor of 4

Explanation:

Given;

initial angular velocity of the ice skater, ω₁ = 2.5 rev/s

final angular velocity of the ice skater, ω₂ = 10.0 rev/s

During this process we assume that angular momentum is conserved;

I₁ω₁ = I₂ω₂

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I₂ is the final moment of inertia

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