Question

A block a and b of mass 2 kg and 4kg are suspended through a spring using a pulley inside a elevator moving downward with constant acceleration 2 m per second the tension in string joining 2 blocks is

Answer 1

Answer:

The tension in the string joining the two blocks will be 64/3 Newtons.

Explanation:

Let the net acceleration is a

and the tension in the string is T

since the elevator is moving downwards, hence net acceleration due to gravity = g- 2 = 10 - 2 = 8

For 2 kg block,

T - 2x8 = 2a

=> T - 16 = 2a...........eqn1

For 4 kg block,

4 x 8 - T = 4a

=> 32 - T = 4a...........eqn2

solving both the eqn we get,

T = 64/3 N

Hence the tension in the string joining the two blocks will be 64/3 Newtons.