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WAEC Physics 2011 Paper

Question : 12

Total: 49

An object of mass 5.0 kg moves with a velocity of 10ms^-1. Calculate its momentum.

Solution:

Concept:

Momentum is the product of the mass and velocity of a moving object.

Explanation:

The formula for momentum is

p = m v

Here,

m = 5.0\ \text{kg}

and

v = 10\ \text{m s}^{-1}

Substitute these values into the formula:

p = 5.0 \times 10

This gives

p = 50\ \text{kg m s}^{-1}

Thus, the momentum of the object is

50.0\ \text{kg m s}^{-1}

Answer:

50.0\ \text{kg m s}^{-1}

, which is Option A.

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