A body moves with constant velocity. Its acceleration is:
A tiny charged particle of mass 2×10⁻³ kg is placed in a uniform electric field and starts from rest. The field exerts a constant force of 4 N on it. Calculate the distance travelled in 10 s.
A car is traveling at a constant velocity of 20 m/s. At the moment the car passes a stationary truck, the truck begins to accelerate from rest at a constant rate of 2.5 m/s². How long does it take for the truck to catch up to the car, and what is the distance traveled at that point?
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.
Which of the following is a correct definition of speed?
A train is moving at a constant speed of 15 m/s. A passenger standing on the platform begins to run from rest at the exact moment the front of the train passes him. If the passenger accelerates uniformly at 1.5 m/s², how long does it take before the passenger catches up with the back of the train, which is 120 m long?