Question :
A man whirls a stone of mass 250 gram, tied at the end of a string of length 2 m in a horizontal circle and at a height of 5 m from the ground. The string breaks and the stone flies off tangenitially and strikes the ground at a horizontal distance of 10 m from the man. What was the magnitude of the centripetal acceleration of the stone, when it was moving in the circle? (g = 10 m/s2)
1. 50 m/s2
2. 25 m/s2
3. 40 m/s2
4. 30 m/s2
Answer :
1 - 50 m/s2
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