25. The diagram (Fig. 2.6) below shows the pattern of
the oil on the road, dripping at a constant rate from a
moving car. What informations do you get from it
about the motion of the car ?
CAR IN
MOTION
Answers
Answer:
Explanation: Answer
Since oil is dropping from the car at a constant rate, distance between consecutive oil drops tells us about the speed of the car. Suppose the time interval between fall of two consecutive drops is t. If the distance between two consecutive drops is d, then speed of the car is v=td.
Initially, car is moving with constant speed, but later value of d starts decreasing, which means car is slowing down.
Answer:
Initially, the drops are at a uniform separation.The rate of dripping being constant, the motion, then, is with a constant speed.
Later on, the spacing between the drops keeps decreasing.This means, within same time interval, the car covers lesser distance as the time progresses.
So, later, the car slows down.
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