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- A ball starts from rest and accelerates at 0.5(H) m/s2 while moving down an inclined plane 9.00 m long. When it reaches the bottom, the ball rolls up another plane, where it comes to rest after moving 15.0 m on that plane. (a) What is the speed of the ball at the bottom of the first plane? (b) During what lime interval does the ball roll down the first plane? (c) What is the acceleration along the second plane? (d) What is the balls speed 8.00 m along the second plane?Suppose you throw a rock nearly straight up at a coconut in a palm tree, and the rock misses on the way up but hits the coconut on the way down. Neglecting air resistance, how does the speed of the rock when it hits the coconut on the way down compare with what it would have been if it had hit the coconut on the way up? Is it more likely to dislodge the coconut on the way up or down? Explain,A falling object has a speed of 10.0 m/s. After traveling 10.0 m, what is the speed of the object? O a. 17.20 m/s O b.20.0 m/s O c. 14.07 m/s O d. 10.0 m/s
- A car starts from rest and reaches a speed of 80km/h in 2 minutes. The acceleration of the car is a. -0.185 m/s² O b. 0.185 m/s2 O c. 40 m/s? d. 0.666 m/s?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. 58.3sA ball was dropped from the top of a building. If the ball was from a height of 339 meters from the ground, find the speed of the ball 3 seconds after it was dropped. = 0 m/s y t = 3.00 s Select one: a. 3325.5900 m/s b. 0.0289 m/s c. 348.8100 m/s d. 29.4300 m/s
- 2. A stone is thrown straight upward and it rises to a maximum height of 40 m. With what speed was it thrown? O a. 30 m/s. O b. 20 m/s. О с. 25 m/s. O d. 28 m/s. O e. 27 m/s.2. I throw a ball down towards the ground from the top of a tall building that is 11m high. The ball hits the ground with a speed of 20m/s. (No, the answer isn't zero.) How fast was the ball moving when it left my hand? Ax Vi Vf a At +xA man drops a pumpkin off of the top of a 100. m tall building. a) How long will it take to drop 50. m? b) How long will it take to hit the ground ? c) How long did it take to fall the final 50. m?. d) Why does it take less time to fall the 2nd 50.:m? e) What it the velocity of the pumpkin upon impact with the ground?
- B. Solve the problems correctly. Present all solutions. 3. all Upiect ct: 5? 4. The brakes of a car moving at 14 m/s are applied, and the car comes to a stop in 4s. How far does the car go, while it is slowing down from 14 to 10 m/s? 5. The brakes of a car whose initial velocity is 30 m/s are applied, and the car receives an acceleration of -2 m/s². How far will it have gone (a) when its velocity has decreased to 15 m/s and (b) when it comes to a stop? 6. A car starts from rest and accelerates 10 m/s². (a) How far will it travel after 5 seconds? (b) How far will it travel during the sixth second?..A student driving a car travels 10 km in 0.5 Hour. What was her average speed? O a. 5.65 m/s. O b. 6.56 m/s. O c. 5.56 m/s. O d. 6.65 m/s. O e. 5.57 m/s.2. While climbing a tree, you pick an apple and throw it straight down. After 1 second, the apple is traveling 18 m/s. How fast will the apple be traveling 3 seconds later? a. -47 m/s b. 47 m/s c. 57 m/s d. -57 m/s е. 11 m/s
