1.

A pendulum of mass m hangs from a support fixed to a trolley. The direction of the string (i.e., angle theta) when the trolley rolls up a plane of inclination alpha with acceleration 'a' is

Answer»

Zero
`tan^(-1)ALPHA`
`tan^(-1)(a+G SIN alpha)/(g cos alpha)`
`"tan"^(-1)(a)/(g)`

ANSWER :C


Discussion

No Comment Found