A ball is dropped from a height of 5 m onto a sandy floor and penetrates the sand up to 10 cm before coming to rest.Find the retardation of the sand assuming it to be uniform ?
pratyush4211:
whats its answer
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Retardation=- accerlation
Means in which accerlation decrease at last become at rest.
So when ball hit sand It was in 10m/s
But after this Velocity decreases to be at 0m/s
So you have to find retardation .
Answer=-500 m/s²
Means in which accerlation decrease at last become at rest.
So when ball hit sand It was in 10m/s
But after this Velocity decreases to be at 0m/s
So you have to find retardation .
Answer=-500 m/s²
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Some calculation is wrong
The answer is 490 m/s sq.
Shall be not
Because before posting my answer i checked this question and it match my answer
Bro you are wrong
I have the book in which this question and answer is written
Answer is only 490 m/s sq.
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