(a) t = v/g, v is initial velocity (2 m/s); g is the gravity acceleration (10 m/s^2). So, t = 2/10 = 0.2 seconds. " How high " is the product of the time of 0.2 seconds by the average speed of 2/2 = 1 m/s, i.e. 0.2*1 = 0.2 meters. (b) Two times this time: 0.2 seconds + 0.2 seconds = 0.4 seconds. (c) the speed of the orange at the caugh moment is the same as the initial speed, 2 m/s (energy conservation law)