A certain string breaks when it is under 25 N of tension. A boy uses this string to whirl a 2-kg stone in a horizontal circle of radius 3 m. The boy continuously increases the speed of the stone. At approximately what speed will the string break.
Added by Nawar A.
Step 1
The formula for centripetal force is F = m*v^2/r, where m is the mass of the stone, v is the velocity (or speed) of the stone, and r is the radius of the circle. We know that the string breaks when the tension is 25 N, so we can set up the equation 25 N = 2 kg * Show more…
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