Question
Physics Question on Acceleration
A ball hangs from a string inside a train moving along a horizontal straight track. The string is observed to incline towards the rear of the train making a constant small angle with the vertical. It shows that the train is:
A
moving with a uniform acceleration
B
moving with a uniform velocity
C
moving with a uniform retardation
D
moving with an acceleration which is increasing uniformly
Answer
moving with a uniform acceleration
Explanation
Solution
Answer (a) moving with a uniform acceleration