Question

A car, starting from rest, accelerates at the rate \( f \) through a distance \( S \), then continues at constant speed for some time \( t \) and then decelerates at the rate \( \frac{f}{2} \) to come to rest. If the total distance is \( 5S \), then

• A. \( S = \frac{1}{4} ft^2 \)
• B. \( S = \frac{1}{2} ft^2 \)
• C. \( S = 4ft^2 \)
• D. \( S = 2ft^2 \)

Hint:

Break motion into parts: acceleration, uniform motion, and deceleration. Then apply kinematic equations separately.

Answer 1

The Correct Option is B