Question

A heavy ball of mass Mis
suspended from the ceiling of a
car by a light string of mass
m (m << M). When the car is
at rest, the speed of transverse
waves in the string is 60 ms 1
To increase the wave- speed in
the string to120 ms, the
acceleration of the car along the
straight line in terms of
gravitational acceleration 'g' is
(A)
50
(B)​

Answer 1

Answer:

g√15

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