11
AssignmentMultiple Choice

Acceleration

Question 11 • AA-F26 Physical Science

A car traveling at a speed of 24 m/s comes to a stop at a red light.How much time will it take for the car to stop if its acceleration is –8.0 m/s2?

Answer
A
3 s
B
16 s
C
32 s
D
192 s

Explanation

Use the equation final velocity = initial velocity + acceleration × time. Since the car stops, its final velocity is 0 m/s: 0 = 24 m/s + (−8.0 m/s²)t. Solving gives t = 24 ÷ 8.0 = 3 s, so the correct choice is 3 s.

AI-written and checked against the verified answer.

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