A race car starting from rest moves along a straight track with an acceleration as shown in the graph (where for t  10 s, a = 8 m/s2). Determine the time t for the car to reach a speed

1. 

12-07

A race car starting from rest moves along a straight track with an acceleration as shown in the graph (where for t gtet 10 s, a = 8 m/s2). Determine the time t for the car to reach a speed of 50 m/s.
[A]. t = 11.25 s
[B]. t = 6.25 s
[C]. t = 12.5 s
[D]. t = 3.53 s

Answer: Option A

Explanation:

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