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प्रश्न
Define Velocity.
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उत्तर
“Rate of change of displacement with time is called velocity.”
OR
“The time rate of change of displacement of an object is called the velocity.”
V = distance/time
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संबंधित प्रश्न
Observe the figure and answer the questions.
Sachin and Sameer started on a motorbike from place A, took the turn at B, did a task at C, travelled by the route CD to D and then went on to E. Altogether, they took one hour for this journey.
Find out the actual distance traversed by them and the displacement from A to E. From this, deduce their speed.
What was their velocity from A to E in the direction AE?
Can this velocity be called average velocity?
What are the SI units of velocity?
When a body said to have a uniform velocity?
A body goes from A to B with a velocity of 30 ms-1 and comes back from B to A with a velocity of 20 ms-1. What is the average velocity of the body for the whole journey?
Exercise Problems.
A ball is gently dropped from a height of 20 m. If its velocity increases uniformly at the rate of 10 ms–2, with what velocity will it strike the ground? After what time will it strike the ground?
A car accelerates at 1.5m/s2 on a straight road. How much is the increase in velocity in 4s?
Distinguish between speed and velocity.
Define velocity.
Define velocity.
Define velocity.
