Relative Motion – Practice


1) Two jets are flying toward each other. The first jet is flying at a speed of 650km/hr and the other jet is flying in the opposite direction at a speed of 520km/hr. Calculate the speed of the first jet relative to the second jet:

2) A police car is pursuing a stolen vehicle at a speed of 40m/s. The stolen vehicle is travelling in the same direction at 32m/s. What is the speed of the police car relative to the stolen vehicle?


Quick Answers:

1) 1170 km/hr (in the opposite direction of the second jet)

2) 8 m/s (in the same direction as the stolen vehicle)

Worked Answers: