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Jerry and Bobby are using a ramp to load furniture into a truck. While rolling a 220-pound piano up the ramp, they discover that the truck is too full with other furniture for the piano to fit. Bobby 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 25°, how many pounds of force must Bobby exert to hold the piano in position? Bobby must exert pounds of force. (Type an integer or decimal rounded to one decimal place as needed.)
Sagot :
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