. A ball is thrown vertically upward with a velocity of 20 m/s from the top of a tower having a height of 50 m. On its return, it misses the tower and finally strikes the ground, What time t1 elapses from the instant the ball was thrown until it passes the edge of the tower? What velocity v1 does it have at this time? What total time t2 is required for the ball to reach the ground? With what velocity v2 does it strike the ground?

2. A toy rocket is launched with an initial velocity of 180 m/s. The height of the rocket, in metres, can be modelled by h = -5t + 180t, where t is the time in seconde the rocket is in the air. How long will the rocket stay above a height of 1000 m?

A ball is tossed straight up from the ground. If it reaches the height of your bedroom window (2.0 m) and then falls straight back down to the ground, (g= 9.8 m/s?; Ignore air resistance and use at least 2 significant figures.) 1. What was its initial velocity? 2. How long is the ball in the air?

You have two stones in your hands, and you are standing on a bridge. You throw the first stone with a velocity of 8.00 m/s upward. One second later, you let drop the second stone. Both stones hit the water below the bridge at the same time. a)For how much time is the first stone in free fall? b)What is the distance from your hand to the water? c) What is the velocity (magnitude and direction) of the first stone when it hits the water?

2. A stone was accidentally dropped from the top of a building 56 m high. After 0.38 s, another stone was thrown vertically downward from the top of the same building. It was observed that the two stones hit the ground at the same time. What was the initial velocity given to the second stone? (Answer: 4 m/s, downward) Give the solution for this (given, solution)

A car is traveling at a steady 77 km/h in a 50 km/h zone. A police motorcycle takes off at the instant the car passes it, accelerating at a steady 7.2 m/s2 . How much time elapses before the motorcycle is moving as fast as the car? How far is the motorcycle from the car when it reaches this speed?

Hello. I am working on a problem with motion. The questions asks me to calculate the maximum height (h1),  total time (t2), and speed of a ball right before it hits the ground. The question states that A person is throwing a ball upward into the air with an initial speed Vo = 10m/s. Assume that the instant when the ball is released, the person's hand is at a height ho = 1.5m. The speed of the ball at its peak height is zero, and the question needs to be solved in ascending part and descending part. I don't understand how to solve for the maximum height. What is the correct formula to use and why? For other questions like this, I will be able to solve them if I know the formulas for the ascending of the ball and the descent of the ball as well as the explanation. Thank you. For the sake of the question, the ball is being thrown straight up.

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 ball is thrown straight down with an initial speed of 3.2 m/s from a height of 5.0 m. What is the position of the ball after 2.6 s, in meters? Use g = 10 m/s2.

A scooter begins at rest at t0=0 seconds. The scooters starts moving, and eventually covers a distance d= 651m, in a time tf= 104 seconds. In a coordinate system with north being the positive x-direction, the scooter's motion is in the northern direction. What wa the scooter's average speed, during this time period, in meters per second? What was the scooters displacement in the northern direction during this person, in meters? What was the scooter's average velocity in the northern direction, in this period in meters per second? If the scooter's final velocity at tf was 12 m/s, what was the scooter's average acceleration in the northern direction, during this period in m/s%^2?