Question

A conical pendulum has length 50 cm. Its bob of mass 100 g performs uniform circular motion in horizontal plane, so as to have radius of path 30 cm. Find

i. the angle made by the string with vertical

ii. the tension in the supporting thread and

iii. the speed of bob.

Answer 1

ii. The weight of bob is balanced by vertical component of tension T

i. Angle made by the string with vertical is 36°52'.

ii. Tension in the supporting thread is 1.225 N.

iii. Speed of the bob is 1.485 m/s.