Question

A stone is dropped from the edge of a roof. What is it acceleration after 1 sec and 2 sec?

Answer 1

When a stone is dropped from the edge of a roof:

• For a freely falling body, acceleration will be constant.
• The acceleration at any time till it reaches ground will the equal to the acceleration due to gravity.
• As the earth pulls the object with a constant acceleration of 9.81 m/s and in downward, at any instant of time will be same.
• therefore, acceleration at 1 sec= g=9.81 m/s
• acceleration after 2 sec= g= 9.81 m/s.

Answer 2

Answer:

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Explanation:

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