Q: All surfaces are smooth. The acceleration of mass m relative to the wedge is
(a) g sin θ
(b) g sinθ + a cos θ
(c) g sin θ – a cos θ
(d) a cos θ
Ans: (b)
Sol: By applying pseudo force
Downward component of force is
F = m g sinθ + m a cos θ
acceleration of mass m relative to the wedge is
a’ = F/m
a’= g sinθ + a cos θ