_11. if you applied a force of 150 lb to push a car 30' in 2 minutes, how much
horsepower would have been used?
xr) or (f=t/r)
_ 12. you have a lug nut that needs 80 ft-lb of torque. you have a 14" ratchet. how
much force would it require?
_ 13. is it better to use an 8" ratchet or a 14" ratchet to tighten the lug nut? why?
_ 14. you have a system with two gears. the driver gear has 48 teeth and the driven
gear has 12. what is the gear ratio?
loy
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