A ball is thrown vertically upwards with a speed of 20 m / s. (a) How...
Homework Answers
Initial velocity of the ball is 
. The acceleration of the ball is 
. The negative sign represents that the acceleration is directed
downward. Since the acceleration of the ball is constant, the
motion of the ball is governed by the kinematics equations for
uniformly accelerated motion.
(a)
We want to find the velocity of the ball when the distance traveled by the ball is h=15 meters. We use
(b)
Time taken by the ball to reach height h=15 meters is equal to the time in which the velocity of the ball is 10.3m/s. We are using
Substituting values
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ball is thrown vertically upwards with a speed of 20 m / s. (a) How...
A ball is thrown vertically upwards with an initial velocity of 18.80 m/s, from the ground....
A ball is thrown vertically upwards with an initial velocity of 18.80 m/s, from the ground. How long is the ball in the air? (Neglect air resistance.) What is the greatest height reached by the ball? Calculate the time at which the ascending ball reaches a height of 12.8 m above the ground. A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 53.0 m/s^2, until the fuel is used up after 6.80s. What...
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2. An object is thrown straight upwards at a speed of 25 m/sec. How high will...
2. An object is thrown straight upwards at a speed of 25 m/sec. How high will it rise? How fast will it be moving when s it is 20 m high? How long will it take to reach this height on + the way up? On the way down?
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A stone is thrown vertically upwards with a speed of 20.0 m / s. (a) What is its speed when it reaches 18 meters? (b) Wh...
A stone is thrown vertically upwards with a speed of 20.0 m / s. (a) What is its speed when it reaches 18 meters? (b) What maximum height does it reach?
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A ball is thrown vertically upward with a speed of 25.0 m/s.(a) How high does it...
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Free-fall notion 1. A ball is thrown vertically upward at an initial speed of 49 m/s....
Free-fall notion 1. A ball is thrown vertically upward at an initial speed of 49 m/s. Assume that the ball leaves the hand when it is 15 m above the ground (about the height of Kirkbride), and that the effects of air resistance can be ignored. Choose your landmark to be the ground; then at t -0, yo- +15 m, Vyo +49 m/s a. 5 pts) How fast is the launch speed in mph? Do you think this is a...
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4. A ball is thrown vertically upward with a speed of 25.0m/s (a) How high does it rise? (b) How long does it take to reach its highest point? eovil
A ball is thrown vertically upwards with an initial velocity of 18.80 m/s, from the ground. How long is the ball in the air? (Neglect air resistance.) What is the greatest height reached by the ball? Calculate the time at which the ascending ball reaches a height of 12.8 m above the ground. A rocket, initially at rest on the ground, accelerates straight upward with a constant acceleration of 53.0 m/s^2, until the fuel is used up after 6.80s. What...
2. An object is thrown straight upwards at a speed of 25 m/sec. How high will it rise? How fast will it be moving when s it is 20 m high? How long will it take to reach this height on + the way up? On the way down?
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4. A ball is thrown vertically upward with a speed of 25.0m/s (a) How high does it rise? (b) How long does it take to reach its highest point? eovil
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