A quarterback can throw a receiver a high lazy lob pass or a low quick bullet pass. these passes are indicated by curves 1 and 2 respectively in figure 4-23. (a) The lob pass is thrown with an initial speednofn21.5m/s and it's time of flight is 3.97s. what is its lunch angle. (b) the bullet pass is thrown with a launch angle of 25.0 degree. what is the speed of thisnpass? (c) what is the time of flight of the bullet pass

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.

When you push downward on a book at rest on a table, you feel an upward force. does this force depend on friction? defend your answer.

Anonzero net force acts on a particle and does work. which one of the following statements is true? the kinetic energy of the particle changes, but the speed of the particle does not change. the kinetic energy of the particle does not change, but the speed of the particle does change. the kinetic energy of the particle changes, but the velocity of the particle does not change. the kinetic energy and the speed of the particle change, but the velocity of the particle does not change. the kinetic energy, speed, and velocity of the particle change.