# physics help

posted by
**john**
.

in a local diner a customer slides an empty coffee cup down the counter for a refill. the cup slides off the counter and strikes the floor at a distance d from the base of the counter. if the height of the counter is h. a) find an expression for the time t it takes the cup to fall to the floor in terms of the variables h and g. b) with what speed does the mug leave the counter? answer in terms of variables d,g, and h. c) in the same terms what is the speed of the cup immediately before it hits the floor? d) in terms of h and d what is the direction of the cups velocity immediately before it hits the floor?