Explain concept of pendulum, Physics

Assignment Help:

A pendulum which is suspended from the ceiling of a railroad car is observed to hang at an angle of 10 degrees to the left of vertical.

Which of the following answers could describe this phenomena?

a) The railroad car is at rest.

b) The railroad car is accelerating to the left.

c) The railroad car is moving with constant velocity to the right.

d) The railroad car is accelerating to the right.

Ans- The railroad car is accelerating to the right

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