The Pascals principle says that pressure in a closed system is transmitted equally to all part.
A hydraulic jacks works under this principle. A small force is applied at one part that transmits pressure to the other part. This then produces a large force that lifts the car.
The 10-kg double wheel with radius of gyration of 125mm about o is connected to the spring of stiffness k = 600 n/m by a cord which is wrapped securely around the inner hub. if the wheel is released from rest on the incline with the spring stretched 225 mm, calculate the maximum velocity v of its center o during the ensuing motion. the wheel rolls without slipping