A car starts from rest and travels a distance of 100 m in 10 seconds, with constant acceleration. The magnitude of the acceleration of the car is A) 1.0 m/s². B) 2.0 m/s². C) 2.5 m/s². D) 3.0 m/s². E) 3.5 m/s².

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Quizplus · Accepted Answer

The formula to calculate acceleration when a car starts from rest and travels a certain distance with constant acceleration is $a = \frac{2s}{t^2}$, where $s$ is the distance traveled and $t$ is the time taken. Substituting $s = 100$ m and $t = 10$ s, we get $a = \frac{2 \times 100}{10^2} = \frac{200}{100} = 2.0$ m/s$^2$.

A Car Starts from Rest and Travels a Distance of 100