Toy cart tied to the end of an unstretched string of length a, when revolved moves in a horizontal circle of radius 2a with a time period T. Now the toy cart is speeded up until it moves in a horizontal circle of radius 3a with a period T. If Hooke's law (F=kx) holds, then

A toy cart is tied to the end of an unstretched string of length 'l'. When revolved, the toy cart moves in horizontal circle with radius 2l and time period T. If it is speeded until it moves in horizontal circle of radius '3l' with period T_1 , relation between T and T_1 is (Hooke's law is obeyed)

A toy cart is tied to the end of an unstrectched string of length 'l' when revolved , the toy cart moves in horizontal circle with radius '2l' and time period T. IF it is speeded until it moves in horizontal circle of radius '3l' with period T_(1) , relation between T and T_(1) is (Hooke 's law is obeyed )

An object of mass M is tied to a string of length l and revolved in a horizontal circle. If length is reduced by l//2 , then period is

A particle of mass 'm' is suspended from a ceiling through a string of length'L'. If the particle moves in a horizontal circle of radius 'r', then the speed of the particle is

Calculate the tension in a string that whirls a 2 kg - toy in a horizontal circle of radius 2.5 m when it moves at 3m/s.