# Motion In A Straight Line

## The accelerated motion of a body can occur :

A
Due to change in its speed only.
B
Due to change in direction of motion only.
C
Due to change in both speed and direction of motion.
D
Due to constancy of velocity.
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## The area under acceleration-time graph gives

A
change in acceleration
B
change in velocity.
C
change in displacement.
D
change in deceleration
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A
Unity
B
Negative
C
Zero
D
Infinite
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A
B
C
D
none of these
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## Define velocity. State its unit.

A
Velocity is defined as the rate of change of distance of a body with respect to time. Its unit in SI is .
B
Velocity is defined as the rate of change of displacement of a body with respect to time. Its unit in SI is .
C
Velocity is defined as the rate of change of distance of a body with respect to time. Its unit in SI is .
D
Velocity is defined as the rate of change of displacement of a body with respect to time. Its unit in SI is .
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