A stone tied to the end of a string is swung with a constant speed around a horizontal circle with a radius of 1.5m. It makes two complete revolutions each second. what is its acceleration? correct answer is 240m/sec but how??
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A stone tied to the end of a string is swung with a constant speed around a horizontal circle with a radius of 1.5m. It makes two complete revolutions each second. what is its acceleration?
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Answer:
236.87 m/s2
Explanation:
w = 2rps = 2* 2pi rad/s
a = w^2 * r = (4 pi)^2 * 1.5 = 236.87 m/s2
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