Question

The graph above shows the position versus time for three different cars 1,2, and 3. Rank these cars according to the magnitudes of their velocities, greatest first.

• A. 1, 2, 3
• B. 3, 2, 1
• C. 2, 1, 3
• D. 2, 3, 1
• E. all tie

Answer 1

The correct option is E all tie

Slope of position- time graph gives the velocity of the car.

From figure, slopes of all the three curves are zero.(Slope of horizontal line is zero)

Thus velocity of each car is zero.

Hence option E is correct.