Question

An object of mass 4kg is whirled round in a vertical circle of radius 1m with a constant speed of 3 m/s. calculat the maximum and the minimum tension in the string.

Answer 1

Answer:

Tmax=76N, Tmin=4N

Explanation:

Tmax=mv2/r+mg

=4*(3)^2/1+4*10=4*9+40=76

Tmax=76N

Tmin=mv2/r-mg

4*(3)^2/1-4*10=4N

Tmin=4N