A ball is thrown upwards. It spends 10 seconds in the air. (a) What was its initial velocity? (b) How high did it go?
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Q: 3. A ball is thrown vertically upward with a speed of 15.0 m/s. (a) How high does it rise? (b) How…
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Q: If you drop an object from a height of 1.3 m, it will hit the ground in 0.51 s. If you throw a…
A: Given: The height of the object is 1.3 m. The time object takes to hit the ground is 0.51 s. The…
Q: A swimmer bounces straight up from a diving board and falls feet first into a pool. She starts with…
A: It is given that, vo=5 m/syo=1.10 myf=0Δy=-1.1 m/sa=-9.8 m/s
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A: Given: initial velocity of the ball, u = 16 m/s initial height of the ball, ho = 1.7 m
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A: Write the kinematic equation and solve for t.
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- Two students are on a balcony 19.5 m above the street. One student throws a ball vertically downward at 16.6 m/s; at the same instant the other student throws a ball vertically upward at the same speed. The second ball just misses the balcony on the way down. (a) What is the difference in their time in air? (b) What is the velocity of each ball as it strikes the ground? (c) How far apart are the balls 0.900 s after they are thrown?A basketball is thrown vertically upward by a player from the ground and reached a maximum height of 2.3m.(a) Calculate the initial velocity of the ball (b) Calculate the total time the ball takes to rise and fall from the same height?A bullet is shot straight up with an initial speed of 180 m/s. How long is the bullet in the air and how high does the bullet go? (neglect air resistance)
- A juggler usually throws balls vertically upwards to a certain height. How high should the balls be thrown in order to spend double the time in the air?A hot-air balloon is ascending at the rate of 13 m/s and is 87 m above the ground when a package is dropped over the side. (a) How long does the package take to reach the ground? (b) With what speed does it hit the ground?I need help solving this question. A rocket starting from rest rises vertically and accelerates at a constant rate of 13 m/s2 for 7 min. At this point the engine of the rocket accidently fails and completely shuts down. (Neglect air resistance and any variation in the acceleration due to gravity) a) What is the speed of the rocket when the engine shuts down? b) How high is the rocket above the ground at the point where the engine shuts down? c) How much higher will the rocket rise after the engine fails? d) What is the total time of the rocket in air? e) What is the average speed of the rocket for the entire trip?
- A cargo helicopter, descending steadily at a speed of 3.8 m/s, releases a small package. Let upward be the positive direction for this problem. (a) If the package is 94 m above the ground when it is dropped, how long does it take for the package to reach the ground? (a) What is the initial velocity of the package? How does it compare to that of the helicopter? What is its sign? What about the magnitude and sign of the acceleration? s(b) What is its velocity just before it lands? (Indicate the direction with the sign of your answer.)At a given instant in time, a ball is thrown straight up into the air with a velocity of 5.0 m/s starting from aposition 2.2 m above the ground.(a) What is the position of the ball after 1.0 s?(b) What is the ball’s velocity at this time?(c) What is the maximum height reached by the ball?(d) How far has the ball traveled after 1.0 s?