The second derivative of position-time graph of a particle represents

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Questions Match

1.
The second derivative of position-time graph of a particle represents

1. Velocity2. Speed3. Acceleration4. Distance

2. A car travels with speed v for the first half of the distance and 2v for the second half. What is the average speed for the entire journey?

1. 1.5v2. 1.33v3. 1.2v4. 1.67v

3. A system of two particles of unequal masses has COM located at origin. If one mass is m at x = 2, the second mass M is at:

1. x = -2m/M2. x = -M/m3. x = 2M/m4. x = m/2M

The second derivative of position-time graph of a particle represents