A hydraulic jack used to lift cars is called a three-ton jack. The large piston

Question

A hydraulic jack used to lift cars is called a three-ton jack. The large piston is 22 mm in diameter, the small one 6.3 mm. Assume that a force of 3 tons is 30,000 N.
(a) What force must be exerted on the small piston to lift the 3 ton weight?
Answer to part A: 2460.14 N
(b) Most jacks use a lever to reduce the force needed on the small piston. If the resistance arm is 3.0 cm, how long is the effort arm of an ideal lever to reduce the force to 80 N?
_____cm ? I got part A, just need help with part B A hydraulic jack used to lift cars is called a three-ton jack. The large piston is 22 mm in diameter, the small one 6.3 mm. Assume that a force of 3 tons is 30,000 N.
(a) What force must be exerted on the small piston to lift the 3 ton weight?
Answer to part A: 2460.14 N
(b) Most jacks use a lever to reduce the force needed on the small piston. If the resistance arm is 3.0 cm, how long is the effort arm of an ideal lever to reduce the force to 80 N?
_____cm ? I got part A, just need help with part B

Explanation / Answer

Cancellation of torque is to be used... L1*F1 = L2*F2 where L1 = 3 cm ; F1 = 2460.14 N ; F2 = 80 N.. Solve the equation n you will get the answer..

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