A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with a velocity of 4.00 m/s, and her takeoff point is 1.10 m above the pool. a)How long (in s) are her feet in the air? b) c)What is her velocity (in m/s) when her feet hit the water?

A baseball is thrown upward from the starting point (x and y zero) at an upward velocity component of 20 m/s and a horizontal velocity component of  25 m/s. a) Find the displacement and velocity of the ball after 3s. b) How much time is required to reach the highest point? c) How high above the starting point is it at the highest point? a) How time is taken for the ball to return to it’s original height? b) How far has it travelled horizontally when it reaches it’s original height?

Near the end of a marathon race, the first two runners are separated by a distance of 45.0 m. The front runner has a velocity of 3.50 m/s, and the second a velocity of 4.25 m/s. (a) What is the velocity of the second runner relative to the first? m/s faster than the front runner. (b) If the front runner is 250 m from the finish line, who will win the race, assuming they run at constant velocity? O The second runner will win. O The first runner will win. (c) What distance ahead will the winner be when she crosses the finish line? Additional Materials O Reading

A ball is dropped from rest from the top of the building. What is the velocity of the ball 3.0 seconds after it is released? Answer in meters per second, and use upward as the positive direction.