Question

A boy with a mouse is 80 kg stands on a scale in an ascending elevator with an acceleration of 3 m/s What is the resultant upward force acting on the boy due to the motion of the elevator

Answer 1

Upward force on the boy will be 1024 N

Step-by-step explanation:

We have given mass of the boy m = 80 kg

Acceleration due to gravity
`g=9.8m/sec^2`

It is given that elevator is ascending with acceleration of
`3m/sec^2`

So net acceleration on the boy = 9.8+3 = 12.8
`m/sec^2` ( As the car elevator is moving ascending )

So upward force on the boy will be equal to F = m(g+a)

So
`F=80* 12.8=1024N`

So upward force on the boy will be 1024 N