A 26-N force, parallel to the incline, is required to push a certain crate at a velocity of 4.7 up a frictionless incline that is 45° above the horizontal. The mass of the crate is:

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anonymous · Answer

hm.. dont know

anonymous · Answer

if the crate is moving with constant velocity then this implies that net force on the crate is zero.when a crate is kept on an inclined plane then force of gravity acting on it parallel to the incline is ----> mass x g x sin(angle of incline)
the force required to puch the crate up the incline with constant velocity is equal to this force