A mass of 0.5 kg is attached to one end of a massless spring whose natural length is 1 m and spring constant is 800 N/m. The other end of the spring is fixed while the mass moves in a circular path in a horizontal plane with an angular speed of 20 rad/s. The extension in the length of the spring will be :
← JEE Main 2022 · 30 Jul · Shift 2
PhysicsSingle correct+4 / -1Question 4 of 90
JEE Main 2022 · 30 Jul · Shift 2, Physics question 4
Answer and worked solution
Official answer: C
Spring supplies centripetal force. : , so m.
(C)