What Kinetic Energy does the sack have just before it strikes the floor?

-A 98.0 N sack of grain is hoisted to a storage room 50.0 m above the ground floor of a grain elevator. The rope being used to lift the sack of grain breaks just as the sack reaches the storage room.

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05-05-2017
Physics

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What Kinetic Energy does the sack have just before it strikes the floor?

-A 98.0 N sack of grain is hoisted to a storage room 50.0 m above the ground floor of a grain elevator. The rope being used to lift the sack of grain breaks just as the sack reaches the storage room.

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kettboy kettboy · Answer 1 · 2017-05-05T20:51:28+02:00

kettboy kettboy

05-05-2017

When an object is at any height above the ground, it has gravitational potential energy. If the object falls, it loses this gravitational potential energy and this energy is converted to kinetic energy. By this logic, we can say:

Gravitational potential energy of grain sack = Kinetic energy of grain sack

GPE = mgh
        = (mg) x h
        = 98.0 x 50.0
        = 4,900 J

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What Kinetic Energy does the sack have just before it strikes the floor?-A 98.0 N sack of grain is hoisted to a storage room 50.0 m above the ground floor of a grain elevator. The rope being used to lift the sack of grain breaks just as the sack reaches the storage room.

Respuesta :

Otras preguntas

What Kinetic Energy does the sack have just before it strikes the floor?

-A 98.0 N sack of grain is hoisted to a storage room 50.0 m above the ground floor of a grain elevator. The rope being used to lift the sack of grain breaks just as the sack reaches the storage room.