Physics 5054 · O Level · Motion

Motion — practice question

A car is moving towards a set of traffic lights. At time $t = 0$, the lights switch to red. Fig. 2.1 illustrates how the car’s speed varies with time.
(a)[1]

Determine the time interval from the lights turning red to the car beginning to slow down.

(b(i))[1]

State what uniform acceleration means.

(b(ii))[1]

State how Fig. 2.1 indicates that the car’s deceleration between $t = 2\,\text{s}$ and $t = 7\,\text{s}$ is non-uniform.

(c)[3]

Determine the distance travelled by the car from the point at which it begins to slow down until it comes to rest.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: 1.4\text{ s}

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI