A physics student has had enough. He is going to drop his physics book into the
river? If the student throws the book
straight out from the bridge with a horizontal
velocity of 12.25 m/s and it lands on the ground a
horizontal distance of 20.6 m from the bridge.
a. What is the time in the air?
b. What is the height of the bridge above
the water?

do you have a formula possibly

i will answer your question if you answer mine

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards