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A body of mass 2 kg is tied at one end of a string 2 m long & revolved in a horizontal circle. If the breaking tension of the string is 400 N calculate the maximum velocity of the body.(20 m/s)circle of radius 1 m calculate the |
| Answer» TION:D302rpm,31.6m/sec302rpm,31.6Given : m=2kg R=1 m T MAX =2000NMaximum tension force in the string T max = Rmv max2 ∴ 2000= 12×v max2 ⟹v max =10 10 =31.6 m/sAlso v max =Rw max ∴ v max =R(2πf max )OR 31.6=1×2πf max ⟹f max =5.03 rps⟹ f max =5.03×60=302 rpm | |