Physics

Grade-7

Easy

Question

# A person starts running at a speed of 30 cm/s. His weight is 1200 N. Considering the g as 10 m/s, what is its kinetic energy?

- 3.6 J
- 1.2 J
- 36 J
- 12 J

Hint:

### 3.6 J

## The correct answer is: 3.6 J

### m =

= 120 kg

v = 30

KE = mv^{2}

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