A sphere is accelerated upwards by a cord whose breaking strength is four times its weight. The maximum acceleration with which the sphere can move up without breaking the cord is:
Text Solution
Verified by ExpertsThe correct answer is:
B
Here the tension in the cord is given by
T = mg + ma
(Here: upwards acceleration = a, mass of sphere = m, T = 4 mg)
So, 4 mg = mg + ma
3 mg = ma
g = 
or a = 3g
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