Estimate the maximum height in feet that you can throw a baseball straight up. (a) For this height, how long after the ball leaves your hand does it return to your hand? (b) Estimate the distance in feet that the ball moves while you are throwing it—that is, the distance from where the ball is when you start your throw until it leaves your hand. Calculate the average acceleration in m/s2 that the ball has while it is being thrown, as it moves from rest to the point where it leaves your hand.

A rock is dropped from a bridge to the water below. It takes 5.25 deconds for the rock to hit the water. What is the velocity of the rock as it hits the water in metres per second? How far from the water is the bridge (in units of metres to 3 decimal places)? State at the start of the problem which direction is positive (using the up arrow or down arrow) Make a list of all given values, units, and variables they represent. Write the general form of the equation you are going to use. Insert the known variables and solve.

At the end of a race a runner decelerates from a velocity of 9.20 m/s at a rate of 1.90 m/s2. (a) How far in meters does she travel in the next 5.90 s? (Assume the deceleration of 1.90 m/s2 is constant over the full 5.90 s.)  m (b) What is her final velocity in m/s?  m/s (c) Evaluate the result. Does it make sense?

(a) Calculate the height (in m) of a cliff if it takes 2.24 s for a rock to hit the ground when it is thrown straight up from the cliff with an initial velocity of 8.08 m/s. (Enter a number.) (b) How long (in s) would it take to reach the ground if it is thrown straight down with the same speed? (Enter a number.)

You are traveling on an interstate highway at the posted speed limit of 70 mph when you see that the traffic in front of you has stopped due to an accident up ahead. You step on your brakes to slow down as quickly as possible. (a) Estimate how many seconds it takes you to slow down to 30 mph. What is the magnitude of the average acceleration of the car while it is slowing down? With this same average acceleration,(b) how much longer would it take you to stop, and (c) what total distance would you travel from when you first apply the brakes until the car stops?

A baseball is hit almost straight up into the air with a speed of 24 m/s . Estimate how long it is in the air. Express your answer to three significant figures and include the appropriate units.

You have already traveled 30 miles east and then 30 miles north. To get back to the start, you travel 30 miles west in 1 hour and then 30 miles south in a half hour. What are your average speed and average velocity for the whole rally? Explain your answer.

An apple falls from an apple tree, from a height of 12m above the ground. (a) How much time it will take to travel half the distance to the ground? (b) How long does it take to reach the ground? (c) What is the velocity of the stone after 0.5 s? (d) What is its velocity when it touches the ground? (a) How much time it will take to travel half the distance to the ground? The time taken to travel half the distance to the ground = (Please type/enter your answer here) (b) How long does it take to reach the ground? The time taken to reach the ground = (Please type/enter your answer here) S (c) What is the velocity of the apple after 0.5 s? Velocity of the apple after 0.5s = m/s (Please type/enter your answer here) (d) What is its velocity when it touches the ground? Velocity of the apple when it touches the ground m/s (Please type/enter your answer here)

A bus travels 250 km south along a straight path with an average velocity of 81 km/h to the south. The bus stops for 26 minutes then it travels 230 km south with anaverage velocity of 78 km/h. How-long does the total trip last? Answer in units of km/h

If a person drops a ball from 500 m above the ground, determine(a) The time that it takes the ball to reach the ground(b) The speed of the ball the moment it hits the ground(c) The speed of the ball 3 seconds after the person drops it