Question

Please solve q 49?

Answer 1

Option (1)

Explanation:

The FBD for the mass is shown. N is the normal reaction between wedge and mass.

Resolving along x + y axes:

• `N sin theta = m ddot x`

• `N cos theta - mg = m ddot y`

`ddot y =0 implies N = (mg)/(cos theta)`

We seek `ddot x = a`, so first equation becomes:

• `a = g tan theta = " option (1) "`