A stealth fighter is in a level flight at a speed of 400 kph and an altitude of 1000 m when it drops a bomb. What is the bomb’s speed when it strikes the ground?
Q: The cliff divers at Acapulco, Mexico, jump off a cliff 26.7 m above the ocean. Ignoring air…
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Q: A 10 kg toy roller-coaster car is 9 meters above the ground and moves at a speed 15 m/s. What is the…
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Q: What velocity (m/s) must a 10.7 kg object be moving in order to possess a kinetic energy of 1.38J?
A: Given data: Mass (m) = 10.7 kg Kinetic energy (KE) = 1.38 J Required: Velocity in m/s
Q: An object with a total of 1.3 x 10⁵ J of gravitational potential energy on a 35 m tall cliff would…
A: Given:- gravitational potential energy ( U ) = 1.3 x 10⁵ J height of cliff (h) = 35m
Q: A roller coaster is moving at 11 m/s at the top of the first hill (h= 78 m). Ignoring friction and…
A: here we will be using conservation of energy which states that energy can neither be created nor be…
Q: A Trapeze artist steps off a platform and swings downward. At the bottom of her swing, she is moving…
A: Initial velocity when the trapeze artist steps off the platform (u) = 0 msvelocity at the bottom of…
Q: A 59 kg skier pushes off the top of a frictionless hill with an intial speed of 3.6 m/s How fast…
A: Solution: As per the given data, Mass(m)=59 kg Initial speed(u)=3.6 m/s height(h)=8 m
Q: A roller coaster is moving at 12 m/s at the top of the first hill (h = 45m). Ignoring friction and…
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Q: A roller coaster is moving at 15 m/s at the top of the first hill (h=52m). Ignoring friction and air…
A: Given data: Initial velocity (Vi) = 15 m/s Initial height (hi) = 52 m Final velocity (Vf) = 16 m/s…
Q: What is the mass of an object moving at a speed 7.1 m/s that has a kinetic energy 242 J? Give your…
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Q: A flower vase on a table slides off horizontally with a speed of 1.50 m/s. It statter in pieces on…
A: Given data: Initial velocity (u) = 1.50 m/s, horizontally Time (t) = 0.450 s Required: The height of…
Q: If the speed at x = 1, v(r = 1) = 3 m/s then the speed at x = 0, v(x=0) is:
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Q: A roller coaster car is approaching the top of a hill with a speed of 7.1 m/s. The top of the hill…
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Q: Two planets of mass 1 x 1025kg are release from rest 8.0 x 1012 m apart. What is the speed of the…
A: Given: Mass of planets : m1=m2=m=1×1025 kg Distance r=8.0×1012m To find the speed ''v'' at half the…
Q: What is the speed of a 137 kg woman running with a kinetic energy of 973.5 J?
A: kinetic energy =12mv2
Q: If an object of mass 47 kg has a kinetic energy of 142 j, what is its velocity?
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Q: A roller coaster is moving at 10 m/s at the top of the first hill (h= 63 m). Ignoring friction and…
A: Concept Apply work energy theorem, Change is Potential Energy=Gain in Kinetic energy
Q: A roller-coaster cart (250 kg) is traveling at 5 m/s on the track that is 20 m above the ground.…
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Q: A roller coaster is moving at 22 m/s at the top of the first hill (h= 47 m). Ignoring friction and…
A: The given roller coaster moves at a speed of 22 m/s when it is at the top of the first hill, at a…
Q: A baseball is thrown vertically upward with an initial velocity of 9 m/s. Neglecting air friction,…
A: The given data are: u=9 m/sv=0 m/s Here, u denotes the initial velocity of the ball, and v denotes…
Q: A roller coaster is moving at 9 m/s at the top of the first hill (h= 60 m). Ignoring friction and…
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Q: You allow a mass of 0.5 kg to slide down a frictionless incline. If you released it 1 m above ground…
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Q: A student drops a water balloon out of a dorm window 27 m above the ground. What is its speed when…
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Q: Consider two balls thrown separately from the top of a 50 m tall cliff. Ball 1 is thrown straight up…
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Q: A roller coaster is moving at 23 m/s at the top of the first hill (h= 65 m). Ignoring friction and…
A: Given data: Initial velocity (Vi) = 23 m/sInitial height (hi) = 65 mFinal velocity (Vf) = 33…
Q: What happens when the speed of a moving object is halved? its momentum is halved its KE is halved…
A: Solution: Given: What happens when the speed of a moving object is halved? Choose the correct…
Q: A roller coaster is moving at 15 m/s at the top of the first hill (h= 52 m). Ignoring friction and…
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Q: An object has a kinetic energy of 226 J and a mass of 11 kg. How fast, in m/s, is the object moving?
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Q: A car moving at 70 km/hr skids 42 meters with locked brakes. How far will a car traveling initially…
A: initial speed (u) = 70 kmhr = 70×518 ms= 19.44 msFinal speed (v) = 0 kmhr = 0×518 ms= 0msDistance…
Q: The cliff divers at Acapulco, Mexico, jump off a cliff26.7m above the ocean. ignoring air…
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Q: What is the speed of a 2.5-kilogram mass after it has fallen freely from rest through a distance of…
A: initial velocity , vi=0 d = 12 m final velocity vf = ? We know that…
Q: A roller coaster is moving at 10 m/s at the top of the first hill (h= 40 m). Ignoring friction and…
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Q: If an object of mass 38 kg has a kinetic energy of 232 j, what is its velocity?
A: Data provided: Mass (m) = 38 kg Kinetic energy (KE) = 232 J Required: The velocity of the object
Q: Two planets of mass 2 x 1025kg are release from rest 9.0 x 1012 m apart. What is the speed of the…
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Q: John throws a rock down with speed 11m/s from the top of a 25-m tower. If g=9.8m/s^2 and air…
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Q: A ball has a mass of 0.150 kg and is given an initial speed of 20.4 m/s. When the ball is at a…
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- A roller coaster is moving at 19 m/s at the top of the first hill (h= 53 m). Ignoring friction and air resistance, how high will the roller coaster be when moving at 30 m/s on the top of the top of a subsequent hill?If a 0.02 kg bullet is traveling 2 meters off the ground, what would the potential energy of the bullet be?A roller coaster is moving at 6 m/s at the top of the first hill (h= 56 m). Ignoring friction and air resistance, how fast will the roller coaster be moving at the top of a subsequent hill, which is 24 m?
- What is the Kinetic Energy of the car with a mass of 0.032 kg as it exits the track? KE = 1/2mvYou shoot a ball straight up with an initial speed of 8490 m/s. When the surface of the earth, what is the speed of the ball? O 2146 m/s reaches a height of 4.0 x 10 6 m above O 2956 m/s O 3546 m/s 4009 m/s 4588 m/s O 4876 m/sA 75 kg bicyclist is traveling with some speed. She approaches a hill that is 56 m high. How fast must she be biking to make it to the top of the hill and still be moving 1 m/s?
- An object is dropped from a height of 12m. At what height will its kinetic energy and its potential energy be equal? Explain your answer with proper equations and calculations.A frictionless roller coaster cart is moving at 3.4 m/s when it is 46 m above the ground. It coasts along the hilly track, at one point reaching the top of hill, 19.4 m above the ground. Find the cart's speed at the top of the hill. v= m/sA baseball with a mass of 503 g possesses a kinetic energy of 0.815kJ. Calculate its velocity in m/s.
- Alissa dropped a ball from a height of 2000 mm. Find out (a) how long it will take to hit the ground and (b) what would be its velocity when it hits the ground? (c) If mass of the ball is 500 g, what would be its kinetic energy when it hits the ground? (d) What would be its potential energy before its fall?A ball of mass m = 6 kg is dropped from a height (hi = 10 m) above the ground. Find the speed of the ball when it is at a height (hf = 4 m) above the ground."Energy per unit time" is a quantity called Power. Which of the following combinations has the same units as power? A length squared times mass over time squared B persimmons. C speed times mass times acceleration over time D Force times acceleration E {potential energy minus kinetic energy} times time F Force times velocity G speed squared times mass H mass time acceleration I mass squared times acceleration.