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An athlete jumps upward with an initial speed of 5 m/s. She is in the air...
A 50-kg athlete jumps on a trampoline hitting it vertically downward with a speed of 2...
A 50-kg athlete jumps on a trampoline hitting it vertically downward with a speed of 2 m/s. If the athlete remains in contact with the trampoline for 0.1 s and the trampoline exerts an average upward force of 2500 N on her, calculate the maximum height she can reach after leaving the trampoline. A. 0.45 m B. 1.20 m C. 0.20 nm D. 0.80 nm E. 0.15 m
The maximum height above the ground for a gymnast jumping straight upward with an initial speed...
The maximum height above the ground for a gymnast jumping straight upward with an initial speed of 5 m/s is O a. d) None of the above lon O bc) 5 m Ocb) 2.5 m O d. a) 1.25 m
A ball is thrown straight upward in the air at a speed of 15.0 m/s. Ignore air resistance.
A ball is thrown straight upward in the air at a speed of 15.0 m/s. Ignore air resistance. a) What is the maximum height the ball will reach? b) What is the speed of the ball when it reaches 5.00 m?c) How long will the ball take to reach 5.00 m above its initial position on the way up? d) How long will the ball take to reach 5,00 m above its initial position on its way down?
A ball is launched directly upward from ground level with an initial speed of 22 m/s....
A ball is launched directly upward from ground level with an initial speed of 22 m/s. (Air resistance is negligible.) (a) How long is the ball in the air? 220/49 S (b) What is the greatest height reached by the ball? 1000149xm (c) How many seconds after launch is the ball 5 m above the release point? s after being thrown (first time) s after being thrown (second time) Be careful when assigning signs to the kinematic quantities. What is...
A blue ball is thrown upward with an initial speed of 23.9 m/s, from a height...
A blue ball is thrown upward with an initial speed of 23.9 m/s, from a height of 0.5 meters above the ground. 2.9 seconds after the blue ball is thrown, a red ball is thrown down with an initial speed of 7.5 m/s from a height of 31.5 meters above the ground. The force of gravity due to the earth results in the balls each having a constant downward acceleration of 9.81 m/s^2. How long after the blue ball is...
A ball is launched directly upward from ground level with an initial speed of 18 m/s....
A ball is launched directly upward from ground level with an initial speed of 18 m/s. (Air resistance is negligible.) (a) How long is the ball in the air? 3.67 (b) What is the greatest height reached by the balil? 16.53 (c) How many seconds after launch is the ball 7 m above the release point? 3.23 x s after being thrown (first time) x s after being thrown (second time) 0.44 Be careful when assigning signs to the kinematic...
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...
3. A 180-Ib person jumps out of an airplane with initial upward velocity of 5 ft/s...
3. A 180-Ib person jumps out of an airplane with initial upward velocity of 5 ft/s at a height of 3000 ft (assuming the air resistance is proportional to its falling speed). The air resists the body's motion with a force of 2 lb for each ft/s of speed. Assuming the constant gravity is 32 ft/s2. 1. find its velocity v = v(t) 2. find its terminal velocity 3. find the distance of falling x = x(t) 4. find the...
You throw a ball vertically upward with an initial speed of 5 m/s from your dorm...
You throw a ball vertically upward with an initial speed
of 5 m/s from your dorm window...
QUESTION 6 5 p You throw a ball vertically upward with an initial speed of 5 m/s from your dorm window. If the window is 10 m above the ground, find the time the ball is in flight. Give your answer with three significant figures and do not write the units. 5 p. QUESTION 7 Continuing with exercise 6, calculate the speed of...
A ball is launched directly upward from ground level with an initial speed of 22 m/s....
A ball is launched directly upward from ground level with an initial speed of 22 m/s. (Air resistance is negligible) How long is the bail in the air? 4.486s What ls the greatest height reached by the ball? 24.7m How many seconds after launch is the ball 6 m above the release point? s after being thrown (first time) s after being thrown (second time)
A 50-kg athlete jumps on a trampoline hitting it vertically downward with a speed of 2 m/s. If the athlete remains in contact with the trampoline for 0.1 s and the trampoline exerts an average upward force of 2500 N on her, calculate the maximum height she can reach after leaving the trampoline. A. 0.45 m B. 1.20 m C. 0.20 nm D. 0.80 nm E. 0.15 m
The maximum height above the ground for a gymnast jumping straight upward with an initial speed of 5 m/s is O a. d) None of the above lon O bc) 5 m Ocb) 2.5 m O d. a) 1.25 m
A ball is launched directly upward from ground level with an initial speed of 22 m/s. (Air resistance is negligible.) (a) How long is the ball in the air? 220/49 S (b) What is the greatest height reached by the ball? 1000149xm (c) How many seconds after launch is the ball 5 m above the release point? s after being thrown (first time) s after being thrown (second time) Be careful when assigning signs to the kinematic quantities. What is...
A ball is launched directly upward from ground level with an initial speed of 18 m/s. (Air resistance is negligible.) (a) How long is the ball in the air? 3.67 (b) What is the greatest height reached by the balil? 16.53 (c) How many seconds after launch is the ball 7 m above the release point? 3.23 x s after being thrown (first time) x s after being thrown (second time) 0.44 Be careful when assigning signs to the kinematic...
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...
3. A 180-Ib person jumps out of an airplane with initial upward velocity of 5 ft/s at a height of 3000 ft (assuming the air resistance is proportional to its falling speed). The air resists the body's motion with a force of 2 lb for each ft/s of speed. Assuming the constant gravity is 32 ft/s2. 1. find its velocity v = v(t) 2. find its terminal velocity 3. find the distance of falling x = x(t) 4. find the...
You throw a ball vertically upward with an initial speed
of 5 m/s from your dorm window...
QUESTION 6 5 p You throw a ball vertically upward with an initial speed of 5 m/s from your dorm window. If the window is 10 m above the ground, find the time the ball is in flight. Give your answer with three significant figures and do not write the units. 5 p. QUESTION 7 Continuing with exercise 6, calculate the speed of...
A ball is launched directly upward from ground level with an initial speed of 22 m/s. (Air resistance is negligible) How long is the bail in the air? 4.486s What ls the greatest height reached by the ball? 24.7m How many seconds after launch is the ball 6 m above the release point? s after being thrown (first time) s after being thrown (second time)
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