1.Jayani is standing on a 15 m high cliff and throws a baseball straight up in the air with an initial velocity of 12 m/s. Determine the maximum height of the ball with respect to the ground and the time it is in the air before it lands on the ground.

2. David accidently throws his cellphone out of an open window horizontally with a velocity of 4.5 m/s. David quickly looks out the window and notices a friend outside. The window is 8.5 m above the ground. How far away from the building should the friend stand to catch the cell phone at ground level?

Thinking Level 4 Level 3 Level 2 Level 1 Below Level 1 Calculate the height With a high degree of With considerable With some With limited Below Level 1 and time of flight for accuracy accuracy accuracy accuracy a projectile (Task 3-1). Calculate the range of With a high degree of With considerable With some logic With limited logic Below Level 1 a projectile (Task 3-2). logic and clarity logic and clarity and clarity and clarity (C2)