Rankers Physics
Topic: Kinematics
Subtopic: Average Speed and Velocity

A car is moving along a straight line OP as shown in the figure. It moves from O to P in 18 s and returns from P to Q in 6 s. Which of the following statements is not correct regarding the motion of the car : Image related to
The average speed of the car in going from O to P and come back to Q is 20 ms–¹
The average velocity of the car in going from O to P and come back to Q is 10 ms–¹
The average speed of the car in going from O to P and come back to O is 20 ms–¹
The average velocity of the car in going O to P and come back to O is 20 ms–¹

Solution:

Total Distance = OP + PQ = 360 + 120 = 480 m

Displacement = OQ= 240 m

Average Speed = 480/24 = 20 m/s

Average Velocity= 240/24= 10 m/s

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