Physics

Grade-7

Easy

Question

# Identify the correct formula for calculating kinetic energy.

- KE = 2mv

Hint:

### KE = 1/2 mv²

## The correct answer is:

### Kinetic energy is directly proportional to the mass of the object and to the square of its velocity, that is, K.E.=1/2 mv².

If the mass has units of kilograms and the velocity of metres per second, the kinetic energy has units of kilograms metres Squared per second squared.

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