Question

How much force is needed to push a 10N box up a ramp that is 10m long and 2m high

Answer 1

Ramp is 2 m high and 10 m long so we can find the angle of inclination of the ramp using trigonometry

`tan\theta = (2)/(10)`

`\theta = 11.3 degree`

now in order to push the block upwards we need to counterbalance the component of weight along the inclined plane

The two components of weight is given as

`W_x = 10 cos11.3 = 9.8 N`

`W_y = 10 sin11.3 = 1.96 N`

So here x component of the weight is counterbalanced by the Normal reaction force.

While we need to apply 1.96 N force along the inclined plane to push the box upwards.