Physics
posted by Melissa .
A hydraulic lift is used to jack a 780 kg car 15 cm off the floor. The diameter of the output piston is 15 cm, and the input force is 160 N.
a)What is the area of the input piston (in m^2)?
b)What is the work done in lifting the car 15 cm?
c)If the input piston moves 13 cm in each stroke, how high does the car move up for each stroke?
d)How many strokes are required to jack the car up 15 cm?

a) diameter = 2*radius = 0.15 m;
radius = 0.15/2
area = pi*radius^2
b)Work = Force*distance = 160*0.15
Respond to this Question
Similar Questions

Physics
In the process of changing a flat tire , a motorist uses a hydraulic jack. She begins applying a force of F1=8.6N to the input piston. As a result, the output plunger applies a force of F2=305N to the car. The height difference between … 
physics
A garage lift has input and output circular pistons with diameters of 1 cm and 45 cm respectively. The lift is used to hold up a car with a weight of 1.7×103 N. What is the force on the input piston and what pressure is applied to … 
Physics
A hydraulic jack is used to move an 8896 Newton car. If the area of the output piston is 8 times that of the input piston, how much input force is required to lift the the car? 
physics
a hydraulic jack is used to move an 8896 newton car. if the area of the output piston is 8 times that of the input piston, how much input force is required to lift the car. i did Pi * 8 them multiplied that answer * 8896 then divided … 
physics
A hydraulic jack is used to move an 8896 Newton car. If the area of the output piston is 8 times that of the input piston, how much force is required to lift the car? 
Physics
the input and output of hydraulic jack are respectively 1 cm and 4 cm in diameter. A lever with a mechanical advantage of 6 is used to apply force to the input piston. How much mass can the jack lift if a force of 180 N is applied … 
physics
A hydraulic jack is used to lift a 2000 pound car. If the output piston (the one the car is sitting on) has an area of 60 square inches, how much force must be applied to the 0.5 square inch input piston to lift the car? 
physics
A hydraulic jack has an input piston with a diameter of 1.00 cm, and an output piston with a diameter of 6.00 cm. What weight (in N) can be lifted when a force of 45.8 N is applied to the input piston? 
physics
A hydraulic jack is used to lift a 2600 pound car. If the output piston (the one the car is sitting on) has an area of 60 square inches, how much force must be applied to the 0.5 square inch input piston to lift the car? 
physics
The hydraulic oil in a car lift has a density of 8.54 x 102 kg/m3. The weight of the input piston is negligible. The radii of the input piston and output plunger are 5.01 x 103 m and 0.160 m, respectively. What input force F is needed …