Question

A lift is moving downwards with an acceleration equal to acceleration due to gravity

Answer 1

Answer:

Apparent weight is more then actual weight

Answer 2

(N = normal, m = mass of object, a = acceleration of lift)

mg - N = ma

N = ma - mg

(given a = g)

therefore

N= 0

friction = u.N (N = 0)

hence friction = u.0

= 0