You place a box weighing 375.6 N on an inclined plane that makes a 40◦ angle with the horizontal. Compute the component of the gravitational force acting down the inclined plane. Answer in units of N.

Question

You place a box weighing 375.6 N on an inclined plane that makes a 40◦ angle with the horizontal. Compute the component of the gravitational force acting down the inclined plane. Answer in units of N.

Answer 1

Assuming no friction

The reaction force perpendicular to the plane is Mg Cos Φ

and force along the plane MgsinΦ ( Acting down the inclined plane )

So Force = 375.6 Sin40 = 241.43 as Sin 40 =0.6428 N

Mg = 375.6 N