A block is placed on a smooth wedge of inclination angle `theta` with the horizontal. What minimum acceleration should be given to the wedge in the horizontal direction so that the block starts moving up along the incline?

Options

A. `gtgcottheta`
B. `gtgtantheta`
C. `gtgsintheta`
D. `gtgcostheta`

Answer

B

Explanation

For block to move up
`macosthetagtmgsintheta`
`agtgtantheta`