Quantitative Aptitude

Time, Speed and Distance

2,165 Questions
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Time, Speed and Distance Questions

Multiple choice

A car which is at rest starts accelerating at the rate of 2 m/s2 when a motorcycle travelling with a constant speed of 54 kmph crosses it. The time at which the car will catch the motor cycle is

  1. 27 seconds

  2. 15 seconds

  3. 54 seconds

  4. 15 minutes

  5. 54 minutes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Motorcycle speed = 54 kmph = 15 m/s. Let t be the time. Distance covered by car = 0.5 * 2 * t^2 = t^2. Distance covered by motorcycle = 15 * t. Equating distances: t^2 = 15t, so t = 15 seconds.