A ball is thrown vertically upward with an initial velocity of 10 m/s from the top of a building of height 200 m. 3 seconds later, a stone is thrown downward from the same point with an initial speed of 24 m/s a) When and where the ball and the stone meet? b) What are their velocities when they meet? g=9.8m/s2

A certain freely falling object, released from rest, requires 1.25 s to travel the last 25.0 m before it hits the ground. (a) Find the velocity of the object when it is 25.0 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward.) m/s (b) Find the total distance the object travels during the fall. m

2. In Figure, a bird changes direction in 2.8 s while flying from point 1 to point 2. Determine the bird's average acceleration. Hint: Use component method. (A /6 man 2 v₂ = 8.5 m/s [E 30.0° N] = 6.4 m/s [E 30.0° S]

Two cars are driving, car 1 has initial position -3500m, initial velocity -55m/s and acceleration +1.25m/s2, car 2 has initial position +4100m, initial velocity -35 m/s and acceleration +0.75m/s2;   a) How much time until they collide? b) What is the x location where they collide, and the final velocity of each car?

A certain freely falling object, released from rest, requires 1.95 s to travel the last 32.0 m before it hits the ground. (a) Find the velocity of the object when it is 32.0 m above the ground. (Indicate the direction with the sign of your answer. Let the positive direction be upward.) m/s (b) Find the total distance the object travels during the fall. m

7. The height of a helicopter above the ground is given by h =20.0 t-5.0 t where h is in meters and t is in seconds. At t=1.00 s, the helicopter releases a small mailbag. a) What is speed of a mailbox before hint to the ground? b) How long mailbox in air? 8. Starting from rest at 5 m from origin, a small still ball's horizontal component of velocity is 90.0 mile/hour in a straight line in 10.0 s. Ball's acceleration is constant during the entire motion, what is ball's final position?

From the top of a cliff, a person throws a stone straight downward. The initial speed of the stone just after leaving the person's hand is 9.7 m/s. (a) What is the acceleration (magnitude and direction) of the stone while it moves downward, after leaving the person's hand? magnitude     m/s2

A goalie completes a goal kick with the ball on the ground. The ball has a vertical velocity of 35 m/s and a horizontal velocity of 20 m/s when it leaves the goalie's foot. How long is the soccer ball in the air? Ignore air resistance. A.) 3.57 s B.) 2.04 s C.) 7.14 s

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A man stands on the roof of a building of height 13.0 m and throws a rock with a velocity of magnitude 35.0 m/s at an angle of 30.0° above the horizontal. You can ignore air resistance.