ExamCompetition Your Success, Our Mission
Login Register
Question discussion

A man weighing W Newton entered a lift which moves with an acceleration of a m/s2. Find the force exerted by the man on the floor of lift w…

166835Medium 1 reply 1,747 views
48
A man weighing W Newton entered a lift which moves with an acceleration of a m/s2. Find the force exerted by the man on the floor of lift when lift is moving downward.
  • A$\(W\left( {1 + \frac{a}{g}} \right)\)$
  • B$\(W\left( {1 - \frac{a}{g}} \right)\)$
  • C$\(W\left( {1 - \frac{g}{a}} \right)\)$
  • D$\(W\left( {1 + \frac{g}{a}} \right)\)$
Answer not set
Join the discussion Report an error

Discussion 1

0
CCommunity
$ \large R - mg = ma$

$ \large R = m(g + a)$

$ \large W_{app} = mg (1 + \frac{a}{g})$

$ \large W_{app} = W(1 + \frac{a}{g})$