Oquizy

A toy car moves along a circular track of radius 5 m. It travels at 20 m/s for 5 s, then slows down uniformly to rest in 5 s. Calculate the total distance travelled along the track.

100 m, 80 m/s² 125 m, 80 m/s² 150 m, 80 m/s² 200 m, 80 m/s²

A bus, initially at rest, accelerates to a velocity of 15 m/s in 3 s. It then continues to accelerate at the same constant rate for an additional 7 s. What is the total distance the bus has traveled?

200 m 225 m 250 m 275 m

A body moves with constant velocity. Its acceleration is:

Constant Increasing Negative Zero

A car travels 80 km in 1.5 hours and 40km in the next 0.5 hour. What is its average speed?

120 km/h 40 km/h 60 km/h 80 km/h

A particle moves along a circular path of radius 10 m at 15 m/s for 10 s, then accelerates uniformly to 25 m/s over 10 s, and finally slows uniformly to rest in 5 s. Calculate the total distance along the path. Also, calculate the centripetal acceleration at its maximum speed using the formula a = v²/r.

425 m, 62.5 m/s² 450 m, 62.5 m/s² 475 m, 62.5 m/s² 500 m, 62.5 m/s²

Velocity is defined as:

Acceleration per unit time Displacement per unit time Rate of change of distance Speed without direction

Quiz: Physics - Kinematics