The engine of a train can impart a maximum acceleration of $1{\rm{m}}{{\rm{s}}^{ - 2}}$ and the brakes can give a maximum retardation of ${\rm{3m}}{{\rm{s}}^{ - 2}}$ . The least time during which a train can go from one place to the other place at a distance of 1.2 km is nearly

NEET UG PHYSICS MCQ: MOTION IN A STRAIGHT LINE

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The engine of a train can impart a maximum acceleration of

1\mathrm{m}{\mathrm{s}^{ - 2}}

and the brakes can give a maximum retardation of

\mathrm{3m}{\mathrm{s}^{ - 2}}

. The least time during which a train can go from one place to the other place at a distance of 1.2 km is nearly

View answer and explanation

Correct option: C

56.6 s

Option C (56.6 s) is correct because it is the least time calculated considering both maximum acceleration and retardation to cover the given distance.

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. After how much time, the car catches up with the scooter? A motor vehicle travelled the first one third of a distance ‘S ’ at a speed of

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, the second one third at a speed of

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and the last one third at a speed of

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