4. As a 500 N woman sits on the floor, the floor exerts a force on her of ext
a) 1000 N.
b) 500 N.
c) 250 N.
d) 50 N.
e) 5 N.

Abody of weight 60 kg is standing in a lift the lift going upward with a uniform velocity of 4.9 metre per second slows down and stops in two seconds then apparent weight of the body during the slow down process is

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

Ain is , is 's of ? 0.62 0.79 1.27 1.50