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A boy whirls a stone

A 0.25 kg stone tied to a 0.5 m string whirls at a speed of 4 m/s. What is the centripetal acceleration acting on the stone?
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2. asked by chris
3. 602 views
A girl whirls a stone in a horizontal circle 1.5 m above the ground by means of a string 141 cm long. The string breaks, and the
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2. asked by Robert
3. 614 views
A girl whirls a stone in a horizontal circle 1.9 m above the ground by means of a string 111 cm long. The string breaks, and the
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2. asked by Ashlyn
3. 657 views
A certain string can withstand a maximum tension of 40 N without breaking. A child ties a 0.37 kg stone to one end and, holding
1. 1 answer
2. asked by umarah
3. 1,521 views
A certain string can withstand a maximum tension of 41 N without breaking. A child ties a 0.35 kg stone to one end and, holding
1. 1 answer
2. asked by Sam
3. 1,535 views
A certain string can withstand a maximum tension of 43 N without breaking. A child ties a 0.37 kg stone to one end and, holding
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2. asked by COFFEE
3. 816 views
A certain string can withstand a maximum tension of 43 N without breaking. A child ties a 0.37 kg stone to one end and, holding
1. 0 answers
2. asked by COFFEE
3. 858 views
A boy whirls a stone in a horizontal circle of radius 1.3 m and at height 2.0 m above levelground. The string breaks, and the
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2. asked by Antonio
3. 698 views
A boy whirls a stone in a horizontal circle of radius 2.0 m and at height 2.2 m above level ground. The string breaks, and the
1. 1 answer
2. asked by barich
3. 535 views
A boy whirls a stone in a horizontal circle of radius 1.9 m and at height 2.1 m above ground level. The string breaks, and the
1. 2 answers
2. asked by Sam
3. 833 views