A heavy ball of mass M is suspended from the ceiling of a car by a light string of mass m ( 
M). When the car is at rest, the speed of transverse waves in the string is 
. When the car has acceleration 
, the wave-speed increases to 
. The value of a, in terms of gravitational acceleration g, is closest to:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
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