A man weighs himself inside a lift. He weighs 72kg-wt when the lift goes up with a constant acceleration ‘a’ , while he weighs 69kg-wt when the lift goes down with the same acceleration. The mass of the man is?
1
Expert's answer
2013-01-21T07:39:28-0500
According to the second Newton's law, the force acting on a man when the lift goes up with a constant acceleration is
F1 = M·(g+a), (1)
where M is the mass of a man. From the other side, the force acting on a man when the lift goes down with the same acceleration is
Numbers and figures are an essential part of our world, necessary for almost everything we do every day. As important…
APPROVED BY CLIENTS
Finding a professional expert in "partial differential equations" in the advanced level is difficult.
You can find this expert in "Assignmentexpert.com" with confidence.
Exceptional experts! I appreciate your help. God bless you!
Comments
Leave a comment