1. You drop a baseball of mass 178 g from a tower that is 48 m above the ground. Air resistance can be neglected. Determine the speed of the balll.9 s after it is dropped.

2. You drop a baseball of mass 178 g from a tower that is 48 m above the ground. Air resistance can be neglected. Determine how high above the ground the ball is 2.8 s after it is dropped.

3. You throw a baseball of mass 178 g horizontally from the top of a tower 61 m tall with an initial speed of 7.3 m/s. Air resistance can be neglected. Determine how long it takes for the ball to reach the ground.

b) Determine how far from the base of the tower the ball hits the ground.

4. A grocery cart of mass 12.9 kg rests on the ground. The coefficient of static friction between the cart and the ground is 0.41 and the coefficient of kinetic friction between the cart and the ground is 0.27. You push on the cart with a force that is directed 24 degrees below the horizontal. What is the minimum force you have to apply to the cart to start it moving?

5. A box of mass 4.2 kg is projected at an initial speed of 17 m/s up a long ramp that is inclined at an angle of 12 to the horizontal. The coefficient of friction between the box and the ramp is 0.34. Determine the distance travelled by the box until it comes to rest.