A rock of mass 2.0 kg is thrown upwards from the ground and its reaches a...
A rock of mass 2.0 kg is thrown upwards from the ground and its reaches a height of 15.0 m (it is not the max height!) where its speed is 25.0 m/s. a) Find the work done by gravity up to 15.0 m of upwards displacement. b) Find the rock’s speed as it leaves the ground using the work-kinetic energy theorem. c) Find the max height it reaches
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A rock of mass 2.0 kg is thrown upwards from the ground and its
reaches a...
An object with mass 12.0 kg is fired from the ground with a speed of 15.0...
An object with mass 12.0 kg is fired from the ground with a speed of 15.0 m/s at an angle of 28.0 degrees with respect to the horizontal. What is its kinetic energy when it reaches its maximum height?
A rock thrown vertically upward from the surface of the moon at a velocity of 24 m/sec reaches a...
A rock thrown vertically upward from the surface of the moon at a velocity of24 m/sec reaches a height of s=24t-0.8t^2 meters in t seconds.a) Find the rock’s acceleration and velocity at time t.b) How long does it take the rock to reach its highest point?c) How high does the rock go?d) How long does it take the rock to reach half its maximum height?e) How long is the rock aloft?
2.8". As it reaches A ball is thrown upwards at a speed of v its apex...
2.8". As it reaches A ball is thrown upwards at a speed of v its apex its speed decreases. What changes in energy, if any, does the ball experience from the initial throw to the apex? ОО O kinetic to potential only kinetic only potential O potential to kinetic
A rock is thrown straight upwards from 1 m off the ground with an initial velocity...
A rock is thrown straight upwards from 1 m off the ground with an initial velocity of 5 m/s. How long would it take to return to the point it was thrown?
In a volcanic eruption, a 2.0 kg piece of porous volcanic rock is thrown vertically upward...
In a volcanic eruption, a 2.0 kg piece of porous volcanic rock is thrown vertically upward with an initial speed of 44 m/s. It travels upward a distance of 47 m before it begins to fall back to the Earth. 1) (a) What is the initial kinetic energy of the rock? (in J) 2) (b) What is the increase in thermal energy due to air friction during ascent? (in J) 3) (c) If the increase in thermal energy due to...
You throw a 20-N rock vertically into the air from ground level. You observe that when...
You throw a 20-N rock vertically into the air from ground level. You observe that when it is a height 15.9 m above the ground, it is traveling at a speed of 24.8 m/s upward. A.Use the work-energy theorem to find its speed just as it left the ground. B.Use the work-energy theorem to find its maximum height.
A ball is thrown upwards with a speed of 19 m/s. it reaches a hight of...
A ball is thrown upwards with a speed of 19 m/s. it reaches a hight of 18.4 m above the point of release before it falls back down. Specify down as the positive direction and the initial position as the origin. If the balls position after three seconds is -12.9 meters, what is the distance traveled by the rock? The acceleration due to gravity is 9.8 m/s^2 down. The answer is 23.9 meters, how would i solve this?
You throw a doughnut with a mass of 0.10 kg straight up from the ground and...
You throw a doughnut with a mass of 0.10 kg straight up from the ground and it reaches a maximum height of 20.0 m. How much kinetic energy does the doughnut have when it is 15.0 m above the ground? (assume no air resistance)
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...
5 and 6? help A 3.00N rock is thrown vertically into the air from the ground....
5 and 6? help
A 3.00N rock is thrown vertically into the air from the ground. At h-15.0m, V-25m/s upward. Use the work-energy theorem to find the initial speed of the rock. 3's 30.3s None of the ahove It takes 12.0J to stretch a spring 3.00cm What is the force necessary to do this? None of the ahove
2.8". As it reaches A ball is thrown upwards at a speed of v its apex its speed decreases. What changes in energy, if any, does the ball experience from the initial throw to the apex? ОО O kinetic to potential only kinetic only potential O potential to kinetic
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...
5 and 6? help
A 3.00N rock is thrown vertically into the air from the ground. At h-15.0m, V-25m/s upward. Use the work-energy theorem to find the initial speed of the rock. 3's 30.3s None of the ahove It takes 12.0J to stretch a spring 3.00cm What is the force necessary to do this? None of the ahove
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