2. A stone is thrown vertically upward with an initial velocity of 80-from the top of a building. How S high will it rise? When and at what velocity will it strike the ground if the height of the building is 576 feet? 2
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- A small rocket launched straight up. When at a height of 5.0km and velocity of 200.0 m/s, it is releases its booster and enters free fall. Neglecting air friction, 1. what is the velocity of the rocket at a height of 6.0km on its way up? A. 142 m/s B. 200 m/s C. 244 m/s D. 397 m/s 2. What is the maximum height, above the ground, the rocket attains? A. 2020m B. 5000m C. 7040m 3. Calculate the total time of flight between releasing its boosters and falling back and hitting the ground? A. 20.4a B. 40.8s C. 37.9s D. 58.3s.A tennis ball is thrown straight up with an initial speed of 22.5 m/s. It is caught at the same distance above the ground.a. How high does the ball rise?b. How long does the ball remain in the air? Hint: The time it takes the ball to rise equalsA stone is thrown at an angle to the horizontal so that it rises to a height h above the top of the cliff before falling into the water. The acceleration of gravity is g. No air resistance. Which one of the following formulas gives the speed of the stone as it hit the water? * a. v+ 2gh b. v + 2gH clif C. 2g(h + H) d. Jv2 + 2gH a d.
- 4. There are two frogs named Eroggy and Jumpy. They jumped from the top of a vertical cliff. Froggy just drops and reaches the ground in 3.50 s, while Jumpy jumps horizontally ((bida bida siya, char! Hahall with an initial speed 95 cm/s. a. How far from the base of the cliff will Jumpy hit the ground? b. How high is the vertical cliff? c. If Jumpy jumps with an angle of 30 degrees with respect to the horizontal, what should be its initial velocity for it to land on the same spot as he did when he jumped horizontally?3. A jet plane has a takeoff speed of Vtakeoff = 60 m/s and can move along the runway at an average acceleration of 2.0 m/s². The runway is 1.5 km. a. Write out the 3 Kinetic equations. 2. v2-U2= Jas 3.5=uttata2 b. Write out the values of initial position, initial velocity, and acceleration. initial position uloity- a: 0.2m/s init.al aueleradion- How many seconds will it take for the plane to reach takeoff speed? С. d. How far will the plane have to travel to get to takeoff speed? e. will the plane be able to get to 60 m/s before it gets to the end of the runway?A student throws a water balloon vertically downward from the top of a building. The balloon leaves the thrower's hand with a speed of 6.00 m/s. Air resistance may be ignored, so the water balloon is free fall after it leaves the thrower's hand. a. What is its speed after falling for 2.00 s? b. How far does it fall in 2.00 s? c. What is the magnitude of its velocity after falling 10.0 m?
- A juggler performs in a room whose ceiling is 3 m above the level of his hands. He throws a ball vertically upward so that it just reaches the ceiling. a. With what initial velocity does he throw the ball? b. How much time is required for the ball to reach the ceiling? 2.A car traveling at 20m/s is attempting to drive up an icy hill. When it getsonto the hill, it is able to go 10 meters before it hits some ice and begins sliding. Assume the hillis a 10 degree incline. A. How far up the hill does the car travel before it starts to slide back down? Make sure toinclude the initial 10 meters in your final distance. B. If the car then slides all the way back to the bottom of the hill, what is its speed when itgets to the bottom? Assume it doesn’t gain traction back, so it is sliding with no frictionthe whole way down.9. A kangaroo is capable of jumping to a height of 2.62 m. Determine the takeoff speed of the kangaroo. A 7.17 m/s 3.65 m/s 9.23 m/s 5.56 m/s B C D
- A ball is kicked vertically upward. It passes a speed gun placed 8 meters above the ground. The speed gun reads 4.8 m/s as it goes up. Ignore air resistance. 1. How high does the ball go before going back to the ground? 2. How long does it take to go from a height of 8.0 meters to its maximum vertical displacement? 3. What is the takeoff speed of the ball? 4. How long is the ball in the air? 5. Suppose the ball is kicked with an initial velocity similar to its takeoff speed from question 3 but is projected at an angle of 38° above the horizontal. (a) How far can it reach? (b) How high can it reach? (c) How much time will it take to go back to the ground?A stone is thrown vertically upward with an initial velocity of 3 m/sec from the top of a tall building. The stone strikes the ground 4 second later. a. What is the maximum height reached by the stone above the building? Ans. S = 0.459 m b. What is the height of the building? Ans. H = 66.331 m c. What is the velocity of the stone as it strikes the ground? Ans. V = 36.20 m/secJulie throws a banana straight up from ground level with an initial speed of 13.0m/s. Air friction is negligible... bananas are slippery. a. Determine the maximum height of the banana. b. How long after being thrown is the banana 6.00m above the ground.