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Question: A small sphere is suspended by a string from the ceiling of a car. If the car begins to move with a ...

A small sphere is suspended by a string from the ceiling of a car. If the car begins to move with a constant acceleration a, the tension generated in the string is:

A

T = T0

B

T > T­0

C

T < T0

D

T = 0

Answer

T > T­0

Explanation

Solution

T = m a2+g2\sqrt{a^{2} + g^{2}} ;

 T>mg or T>T0 [T0=mg]