Consider a car moving on a straight road with a speed of 100 m/s . The distance at which car can be stopped is [ μ_k = 0.5 ]: - Physics MCQ AIEEE 2026 | ExamTest.live

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Consider a car moving on a straight road with a speed of 100 m/s . The distance at which car can be stopped is [μ_{k} = 0.5]:

Solution & Step-by-step Explanation

Stopping distance s = \frac{u ^{2}}{2 a} .Friction force f = μ_{k} m g = ma ⟹ a = μ_{k} g . s = \frac{u ^{2}}{2 μ _{k} g} Given u = 100 m/s, μ_{k} = 0.5, g = 10 m/s^{2} : s = \frac{10 0 ^{2}}{2 \cdot 0.5 \cdot 10} = \frac{10000}{10} = 1000 m

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Consider a car moving on a straight road with a speed of 100 m/s . The distance at which car can be stopped is [μ_{k} = 0.5]:

800 m

1000 m

100 m

400 m

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