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Retardation

Rate of chang...

Question

Rate of change of velocity is

A

distance

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B

acceleration

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C

time taken

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D

motion

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Solution

The correct option is B
acceleration

Acceleration is defined as the rate of change in velocity. An object is accelerating if it is changing its velocity. It has both magnitude as well as direction.

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Q. Match column -I with column-II and select the correct answer using the codes given below:

	Column-I		Column -II
(A)	The rate of change of momentum	(p)	Acceleration
(B)	The ratio of the total distance travelled to the total time taken	(q)	Velocity
(C)	The time rate of change of velocity	(r)	Average speed
(D)	Displacement per unit time	(s)	Force

Q. Assertion :In retarded motion the displacement and acceleration are in opposite directions. Reason: Acceleration is rate of change of velocity.

Q. Assertion :For a particle, acceleration-time graph gives the velocity. Reason: Rate of change of velocity is acceleration.

Q. (a) Displacement is a __________ quantity, whereas distance is a __________ quantity.
(b) The physical quantity that includes both the speed and direction of the motion of a body is called its __________.
(c) A motorcycle has a steady __________ of 3 m/s². This means that each __________ its __________ increases by __________.
(d) Velocity is the rate of change of __________. It is measured in __________.
(e) Acceleration is the rate of change of __________. It is measured in __________.

Q. Acceleration is defined as the rate of change of velocity. Unit of rate of change of acceleration is:

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