how long would it take a car starting from the rest and accelerating uniformly in a straight line at 5 m/sec square to cover a distance of 200 m?
Correct answer: A. 9s
- A. 9s
- B. 10s
- C. 20s
- D. 12s
Explanation
Here is the explanation of the correct option D = ut + 1/2 at2200 = 0.t +1/2 (5)t2200 = 5/2 t280 = t2t = √16.5t =4√5t = 4x2.23 (√5 = 2.23)t = 8.94
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About Acceleration
Acceleration measures the rate at which velocity changes with time, including changes in speed, direction or both. Work includes average and instantaneous acceleration, the relation a = Δv/Δt, uniform acceleration equations, and interpreting velocity time and displacement time graphs, with acceleration carefully distinguished from velocity.
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