Question

A box of mass 4 kg is placed on a rough inclined plane of inclination 60°. Its downward motion can be prevented by applying an upward pull is F and it can be made to slide upwards by applying a force 3F . The coefficient of friction between the not and inclined plane is

Answer 1

Answer:

Range:- During time of flight, the horizontal velocity u cos α remains constant. The greatest distance of the projectile from the inclined plane is u2sin2 (α-β)/2gcosβ . A Particle is projected with a velocity 39.2 m/sec at an angle of 30o to an inclined plane (inclined at an angle of 45o to the horizontal).

Answer 2

Answer:

the coefficient of friction between the box and inclined plane is (3)^1/2÷2.