Advertisements
Advertisements
प्रश्न
Give one example of a situation in which a body has a certain average speed but its average velocity is zero.
Advertisements
उत्तर
Motion of a boy from his home to shop (in one direction) and back to home (in its reverse direction) is an example of a situation in which a body has a certain average speed but its average velocity is zero.
APPEARS IN
संबंधित प्रश्न
When will you say a body is at non-uniform acceleration?
Fill in the following blank with a suitable word:
Acceleration is the rate of change of ______ It is measured in ______
What term is used to denote the change of velocity with time ?
Define velocity. What is the SI unit of velocity ?
Find the initial velocity of a car which is stopped in 10 seconds by applying brakes. The retardation due to brakes is 2.5 m/s2.
A train travelling at 20 m s-1 accelerates at 0.5 m s-2 for 30 s. How far will it travel in this time ?
A body, initially at rest, starts moving with a constant acceleration 2 m s-2. Calculate: (i) the velocity acquired and (ii) the distance travelled in 5 s.
Can you suggest a real-life example about the motion of a body from the following velocity – time graph?
Area under a v – t graph represents a physical quantity which has the unit
Draw a velocity versus time graph of a stone thrown vertically upwards and then coming downwards after attaining the maximum height.
