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science

Grade6

Easy

Question

Find the height of the particle if the body has a potential energy of 20J and a mass of 5 kg.

0.5 m
0.6 m
0.4 m
0.3 m

hint Hint:

Potential energy= mass x gravitational acceleration x height.

The correct answer is: 0.4 m

Given,
Potential energy of a body = 20 J
mass of the body = 5 kg
According to the formula,
Potential energy= mass x gravitational acceleration x height.
height = $fraction numerator p o t e n t i a l space e n e r g y over denominator g r a v i t a t i o n a l space a c c e l e r a t i o n space cross times space m a s s end fraction$ ( gravitational acceleration = 9.8m/s²)
height = $fraction numerator 20 over denominator 9.8 space cross times space 5 end fraction$
height= 0.4 m

Related Questions to study

A plane of mass 300 kg and a cargo plane of mass 30000 kg; which one has more potential energy if the height of planes flying is the same?

A plane of mass 300 kg and a cargo plane of mass 30000 kg; which one has more potential energy if the height of planes flying is the same?

A potential energy has_____

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Potential energy cannot be

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parallel

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