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. (Calculate the height and time of flight for a projectile)

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? (Calculate the range of a projectile)

3. An object of mass 3.8 kg is pushed directly from rest along a horizontal surface, a distance of 1.2 m, and reaches a speed of 2.6 m/s by the end of the push.

(a) Determine the acceleration of the object while being pushed. (Use kinematics equations and Newton's Second Law to determine acceleration)

(b) Determine the value of the applied force that is acting. **Assume neither friction nor air resistance is involved. (Determine applied and net force)

4. Determine the net force and acceleration of the object. The mass of the object is 48 kg. (Use kinematics equations and Newton's Second Law to determine acceleration. Determine applied and net force)

140 N 325 NG 100 N 75 N 140 N