Three vehicles move along a straight level road in the same direction: • a car of…
PHYSICS · Multi-part · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
Three vehicles move along a straight level road in the same direction:
• a car of mass 1.2×103kg at 15m/s,
• a motorcycle of mass 1.5×102kg at 30m/s,
• a loaded truck of mass 8.0×103kg at 5m/s.
Answer the following:
(i) Calculate the magnitude of linear momentum for each vehicle.
(ii) Arrange the vehicles in descending order of magnitude of momentum and show your working.
(iii) If each driver can apply brakes producing a maximum retarding force of 6.0×103N, which vehicle will take the greatest time to come to rest? Give a reason based on your results from part (i).