A particle moving in a straight line has the following velocity–time description: •…
PHYSICS · Multi-part · A Level · Physics · Mechanics and materials · Mechanics and materials
Problem
A particle moving in a straight line has the following velocity–time description:
• It accelerates uniformly from 0 to 20 m/s in the first 5 s.
• It then maintains 20 m/s for the next 3 s.
• It finally decelerates uniformly to −10 m/s in the subsequent 4 s.
(i) Determine the particle’s displacement during the entire 12 s interval.
(ii) Determine the total distance travelled in this interval.