Question

11
5. A pendulum bob is hanging from the roof
of an elevator with the help of a light string.
When the elevator moves up with uniform
acceleration 'a', the tension in the string is
T7. When the elevator moves down with
the same accleration, the tension in the
string is T. If the elevator were stationary,
the tension in the string would be

Answer 1

Answer:

by the que.

m(g+a ) = t7

m(g-a) = t

by adding both we get

2mg = 8t

mg = 4t ans.