A heavy ball of mass M is suspended from the ceiling of a car by a light string of mass m(mltltM).
Channel: Doubtnut
Date: 2020-01-03

A heavy ball of mass M is suspended from the ceiling of a car by a light string of mass m(mltltM). When the car is at rest, the speed of transverse waves in the string is `60,ms^(-1)`. The value of a, in terms of gravitational acceleration g, is closest to :