A body moving with initial velocity u and uniform
acceleration a travels 90 metres in
8 seconds
and 290 metres in 15 seconds. Find.
i) Initial velocity of the body
i) Acceleration of the body.
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Answer:
INTEXT QUESTIONS Pg 100
1. An object has moved through a distance. Can it have zero displacement? If yes, support your answer with an example.
Answer: An object can have zero displacement even when it has moved a distance and shown some displacement. This takes place when the final position of an object coincides with its own initial position. Let's say, if a person moves around circular area and comes back to the place from where he started then the displacement will be zero.
2. A farmer moves along the boundary of a square field of side 10 m in 40 s. What will be the magnitude of displacement of the farmer at the end of 2 minutes 20 seconds from his initial position?
Answer:
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Answer:a=2.309m/s/s
u=2.01m/s
Explanation:
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