what I Know choose the letter of the best answer. Write the chosen letter on a separate sheet of 1. A cannon fires a cannonball with the initial velocity of 30 m/s at an angle of 60 degrees to the horizontal. If air resistance is negligible, the amount of time the cannonball remains in the air is a. 2.6 s b. 3.0 s C. 5.2 s d. 6.Os 2. An object is thrown off of a cliff 320 m above level ground with an initial horizontal velocity of 20 m/s. The amount of time it takes to strike the ground is most nearly. a. 2 s b. 4 s c. 8 s d. 12 s 3.A basketball is thrown upwards on an are at a 60 degree angle with the horizontal. If the velocity of the ball is 5 m/s how fast the thrower run to catch the ball after it is released? a. 2.5 m/s b. 5.0 m/s c. 20 m/s d. 4.3 m/s 1
