Q. A cyclist is traveling at an initial speed of 10.0m/s. She accelerated at a rate of 0.500m/s^2. What is her final speed after 9.0 s?
Q. A dentist's chair with a patient in it weighs 2280 N. The output plunger of a hydraulic system begins to lift the chair when the dentist's foot applies a force of 50 N to the input piston. Neglect any height difference between the plunger and the piston. What is the ratio of the radius of the plunger to the radius of the piston?