0
Still curious? Ask our experts.
Chat with our AI personalities
Steve
Professor
Ross
Add your answer:
Earn +20 pts
How many pounds can you lift with a 28 inch crank type handle turning an 8 inch round cylinder attached by a rope with a force of 50 foot pounds?
The question was going along so nicely there, until it got to the very end, and thenshot itself in the foot with "foot pounds"."Foot pounds" is a torque, not a force.-- If you apply 50 pounds of force at the end of the crank, that 50 pounds becomes175 pounds of force at the surface of the 8-inch cylinder, because the mechanicaladvantage of the crank/cylinder arrangement is 28/8 = 3.5 .-- If you apply 50 foot-pounds of torque at the end of the crank, then the force is50 ft-lb/28 inches = 50 lb x 12 in/28 in = 21 3/7 pounds .Now, the same mechanical advantage of 3.5 gives you 75 pounds at the hub.What a difference a unit makes !
How much force is required to lift an 80 pounds 24 inch round hatch which is hinged on one side?
80 lbs until past 45 degrees
How much horsepower is needed to lift 220 lbs 30 inches in 10 seconds?
1 horsepower = 550 foot-pounds per second 30 inches = 2.5 feet (2.5) x (220)/10 = 550 foot pounds per 10 seconds = 1/10th of a horsepower.
How much weight on a pivot would it take to lift 100 pounds?
Assuming the pivot is positioned at a 90-degree angle and ignoring friction, it would take a 100-pound force applied at the end of a 1-foot-long lever arm to lift 100 pounds. This is based on the principle of torque, where the force applied multiplied by the distance from the pivot point determines the weight that can be lifted.
Macho mel can lift 200 kilograms with ease how much is this in pounds?
Macho Matt can lift 200 kilograms with ease. How much is this in pounds?
