jerry and Billy are using a ramp to load furniture into a tr

jerry and Billy are using a ramp to load furniture into a truck. While rolling a 240-pound piano up the ramp, they discover that the truck is too full with other furniture for the piano to fit.Billy holds the piano in place on the ramp while Jerry repositions other items to make room for it in the truck. If the angle of inclination of the ramp is 15degrees°, how many pounds of force must billy exert to hold the piano in position?

Solution

given the weight of the piano is 240 pounds

angle of inclination of piano is 15 degrees

force billy must exert to hold piano in position should be

240*cos(15)