Aball is thrown horizontally from a high cliff with a velocity of 5 m/s. ignoring the slowing of the ball due to air resistance (and assuming the ball is still falling), what will be the horizontal velocity of the ball 3 seconds later? a. 0 m/s b. 5 m/s c. 9.8 m/s d. 15 m/s

Asolid cylinder and a cylindrical shell have the same mass, same radius, and turn on frictionless, horizontal axles. the cylindrical shell has light-weight spokes connecting the shell to the axle. a rope is wrapped around each cylinder and tied to blocks of equal masses that are held the same height above the ground. both blocks are released simultaneously. the ropes do not slip. which block hits the ground first? or is it a tie?