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COMEDK2023PhysicsMotion in One Dimension

A car starts from rest and accelerates uniformly to a speed of 180 kmh ⁻¹ in 10 ~s . The distance covered by the car in this time interval is

Options

  1. A500 m
  2. B250 m
  3. C100 m
  4. D200 m

Correct answer

B. 250 m

Step-by-step solution

Speed of car, v=180 kmh ⁻¹=50 ~ms ⁻¹ and time, t=10 ~s Acceleration of the car, a= v-u t = 50-0 10 =5 ~ms ⁻² Thus, the distance covered by the car, s= 1 2 a t^2= 1 2 5 (10)^2=250 ~m

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