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CAIE A-Level Physics AS 2.1.2 Distance Displacement Speed Velocity and Acceleration Questions

Use and interpret distance, displacement, speed, velocity and acceleration, including scalar and vector quantities, in one-dimensional motion problems.

Syllabus
2028–2030
Course
Physics 9702
Level
AS

Exam points

  • Use and interpret distance, displacement, speed, velocity and acceleration, including scalar and vector quantities, in one-dimensional motion problems.

CAIE A-Level Physics AS 2.1.2 Distance Displacement Speed Velocity and Acceleration Questions question 1

[Maximum number: 1]

A child on a sledge slides down a steep hill and then travels in a straight line up an ice-covered slope, as illustrated in Fig. 3.1.

Fig. 3.1 (not to scale)

Fig. 3.1 (not to scale)

The sledge passes point A with speed 18 ms−118 \mathrm{~ms}^{-1} at time t=0 and then comes to rest at point B. The child applies a brake to the sledge at point B. The brake does not keep the sledge stationary and it immediately slides back down the slope towards A .

The variation with time t of the velocity v of the sledge from t=0 to t=24 st=24 \mathrm{~s} is shown in Fig. 3.2.

Fig. 3.2

Fig. 3.2

State the time taken for the sledge to travel from A to B .
time =

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