when do we say that acceleration of a body is a) uniform motion b) non-uniform. Give one example in each case.
Answers
Answer:
a) when rate of change of position or velocity is same
b) when body covers unequal distance in equal interval of time.
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Answer:
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Explanation:
UNIFORM MOTION
(i) A body is said to be in uniform acceleration if it travels in a straight line and its velocity increases or decreases by equal amounts in equal time intervals.
EXAMPLES
A car going along a straight level road at steady speed.
A vibrating spring in a sewing machine.
A ship steaming on a straight course at steady speed.
A train going along the tracks at steady speed.
NON UNIFORM MOTION
(ii) A body is said to be in non-uniform acceleration if the rate of change of its velocity is not constant, that is differs in different time intervals.
EXAMPLES
Oscillation of pendulum
The motion of a train
Person jogging in the park etc