Question

When a bob suspended i'n train and train moving with accelerated motion?

Answer 1

Answer:

When the bob is suspended in the train moving with constant acceleration, the bob experiences pseudoforce . As a result is pushed upwards and backwards opposite to direction of acceleration.

I will tell you the formula considering the relationship between the angle of bob, acceleration and gravity.

Let theta be the angle made by bob with vertical.

Therefore,

tan(theta) = a/g. [a - acceleration]

[g - gravity ]

Please learn the concept of pseudoforce from your book.

In short pseudoforce is related to inertia.

Hope you will be able to understand.