science

Grade6

Easy

Question

# Find the potential energy if the body has a mass of 1 kg and falls from a height of 20 m.

- 190J
- 192J
- 196J
- 199J

Hint:

### Potential energy= mass x gravitational acceleration x height

## The correct answer is: 196J

### Given,

mass of the object = 1 Kg

Height from which the object is falling = 20 m

According to the formula,

Potential energy= mass x gravitational acceleration x height.

PE = 1 x 9.8 x 20 ( gravitational acceleration = 9.8m/s^{2})

PE = 196 J

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