Advertisements
Advertisements
प्रश्न
A stone is dropped from a certain height. Is its motion uniform or non-uniform?
Advertisements
उत्तर
APPEARS IN
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 kind of a velocity does a flying bird most likely to have?
(a) Uniform velocity, or
(b) Non- uniform velocity.
Figure represents graphically the velocity of a car moving along a straight road over a period of 100 hours.
How long is the body travelling with a uniform velocity?
If the velocity of an object increases with respect to time, then the object is said to be in______ acceleration.
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?
If the final velocity is less than the initial velocity the acceleration is ______.
Assertion: A body can have acceleration even if its velocity is zero at a given instant of time.
Reason: A body is momentarily at rest when it reverses its direction of motion.
Define velocity.
Distinguish between speed and velocity.
Define velocity.
