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3 years ago

3) A dock worker pushes a 72 kg crate up a 2.0 m high,

Physics

1 answer:

Vlad [161]3 years ago

7 0

Work done on the crate is 1411.2 J

Explanation:

Work done is defined as the product of force and the distance moved by the object. The unit of work done is in joules and denoted by the symbol J.

Work done = F * d

where F represents the force and d represents the distance moved by the object.

mass = 72 kg , distance moved by the object is given by 2.0 m

Force F = mass * gravity = 72 * 9.8

= 705.6 N =706 N.

Work done = 706 * 2.0 = 1412 J.

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3 years ago

A solid uniform cylinder of mass 4.1 kg and radius 0.057 m rolls without slipping at a speed of 0.79 m/s. What is the cylinder’s

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Answer:

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Explanation:

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4 years ago

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Aerobics I think.

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3 years ago

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3 years ago

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