Timmy and Bobby are using a ramp to load furniture into a truck While rolling a

Question

Timmy and Bobby are using a ramp to load furniture into a truck While rolling a 270-pound piano up the ramp, they discover that the truck is too ull with other furniture for the piano to fit. Bobby holds the piano in place on the ramp while T inclination of the ramp is 20 how many pounds of force must Bobby exert to hold the piano in position? Timmy repositions other iterns to make room for it in the truck If the angle of Bobby must exertpounds of force (Type an integer or decimal rounded to one decimal place as needed ) box

Explanation / Answer

force = 270 pounds

angle of inclination = 20 degrees

f1 cos 110 + f2 cos 20 = 0

f1 sin 110 + f2 sin 20 = 270

-.342 f1 + .9397 f2 = 0

.9397 f1 + .342 f2 = 270

f1 = 253.7

f2 = 92.3

so, bobby must exert 92.3 pounds of force

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