1}can displacement be zero even when distance is not zero? Give example.
2}how can you get speed of an object from its distance time graph ?
3}how can you get distance of an object from its speed time graph ?
4}can a body has zero velocity and still acceleration? give example .
5}is it possible in straight line motion of particle having zero speed and a non zero velocity? explain .
Answers
Explanation:
1) Yes. For example, a car travels from point A to B and then comes back. Suppose AB=5m. In this case, distance travelled is 10m, while the displacement is zero
2) distance = rate x time. To solve for speed or rate use the formula for speed, s = d/t
3) You can use the equivalent formula d = rt which means distance equals rate times time. distance = rate x time. To solve for speed or rate use the formula for speed, s = d/t which means speed equals distance divided by time.
4) Yes, a body with a velocity 0 can still accelerate. The simplest example is a body which is thrown up. At the peak point its velocity becomes 0 but still accelerates due to gravity
5)No, it is not possible to have zero speed with non zero velocity in a straight line. If the speed of a body in a straight line is zero means the body is not moving So the rate of change of displacement is zero, that is the velocity of the body is zero
Hope this helps you