STANDARD Physics Average Speed and Velocity MCQ Question
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 6s. Which of the following statement is not correct regarding the motion of the car?
The average speed of the car in going from O to P and come back to Q is 20 m s⁻¹.
The average velocity of the car in going from O to P and come back to Q is 10 m s⁻¹.
The average speed of the car in going from O to P and come back to O is 20 m s⁻¹.
The average velocity of the car in going from O to P and come back to O is 20 m s⁻¹.
Correct Answer
Detailed Explanation
The average velocity of a round trip is zero because the displacement is zero. The car returns to its starting point, so the total displacement is zero, making the average velocity zero.
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