Amotorist makes a trip of 180 miles . for the first 90 miles she drives at a constant speed of 30 mph at what constant speed must she drive the remaining distance if her average speed for the total trip is to be 40 mph

The car hoist allows the car to be driven onto the platform, after which the rear wheels are raised. if the loading from both rear wheels is 1380 lb, determine the force in the hydraulic cylinder ab. neglect the weight of the platform itself. member bcd is a right-angle bell crank pinned to the ramp at c. the force is positive if in tension, negative if in compression.

Which expression allows you to determine the mechanical advantage of an inclined plane? a. height of plane / input force b. length of plane / input force c. length of plane / height of plane d. height of plane / length of plane

If an athlete runs once around a track, back to the starting line, her average velocity is zero. true or false?