Question

a block of mass M kg is kept on a weighing machine in an elevator if the elevator is retarding upwards by 'a' m metre square the reading of weighing machine is in Kilogram force​

Answer 1

Answer:

Explanation:

Hope it will help you

Answer 2

Answer:

M(g+a)

Explanation:

due to the acceleration upwards by "a", mass M will experience extra force "Ma".

So the total weight of the Block is

= Mg+Ma

=M(g+a)

Hence the weighing scale reads more than Mg.