AP EAMCET · PHYSICS · Motion In One Dimension
An object travelling at a speed of comes to rest in a distance of after the brakes were applied. The retardation produced by the brakes is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
From the equations of kinematics, v2-u2=2as Given, u=36 kmph=10 m s-1 and s=200 m ⇒0-102=2×a×200 ⇒-100=a×400 ⇒a=-0.25 m s-2
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