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JAMB Physics 2024 Paper

Question : 110

Total: 125

Solution:

Concept:

Mean acceleration is the rate of change of velocity over a time interval.

Explanation:

The formula for mean acceleration is:

a = \frac{\Delta v}{\Delta t} = \frac{v_2 - v_1}{t_2 - t_1}

From the graph points,

v_1 = 5\, \mathrm{m/s}

t_1 = 2\, \mathrm{s}

and

v_2 = 15\, \mathrm{m/s}

t_2 = 4\, \mathrm{s}

Substitute into the formula:

a = \frac{15 - 5}{4 - 2} = \frac{10}{2} = 5.0\, \mathrm{m/s^2}

Thus, the mean acceleration is constant at

5.0\, \mathrm{m/s^2}

Answer:

5.0\, \mathrm{m/s^2}

(Option A).

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