Using energy considerations and assuming negligible air resistance, show that a rock thrown from a bridge 20.0 m above water with an initial speed of 15.0 m/s strikes the water with a speed of 24.8 m/s independent of the direction thrown.

Q: An 80.0-kg skydiver jumps out of a balloon at an altitude of 1,190 m and opens the parachute at an…

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Q: iven: A bowling ball is dropped from the top of a building that has a height of h = 101 m. Assuming…

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Q: A 65-kg skier with an initial speed of 11.2 m/s coasts up a height h=2.6-m high rise as shown in the…

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Q: In the figure, a frictionless roller coaster car of mass m = 826 kg tops the first hill with speed…

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Q: Consider a 1,492 kg car cruising at constant speed of 59 km/h. Now the car starts to pass another…

A: Given,Mass of car m=1,492 kg initial speed u=59 km/hru=59 km/hr×518m/s1km/hr=16.39 m/scar has to…

Q: a 75 kg cross country skier is climbing a 3 degree slope at a constant speed of 2.0 m/s and…

A: The mass m=75kg  The speed =2.0m/s To find the final velocity on the level ground

Q: Using energy considerations and assuming negligible air resistance, show that a rock thrown from a…

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Q: 62.0 kg skier starts from rest at the top of a ski slope 55.0 m high. (a) If the frictional forces…

A: mass of skier (m) = 62 kg height (h) = 55 m work done by frictional forces = -9800 J

Q: An 86.0 kg skydiver jumps out of a balloon at an altitude of 1 340 m and opens the parachute at an…

A: Mass of the skydiver, m = 86.0 kg Initial altitude, h1 = 1340 m Altitude at which the parachute is…

Q: A 5kg medicine ball is thrown upward at 8 m/s. When it is caught, a force is applied over a distance…

A: Given Data: The mass of the ball is: m=5 kg The velocity of the ball is: v=8 m/s The distance to…

Q: A roller coaster car has a massive 320 kg. Starting from the rest the car requires 3.5×10^5 joules…

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Q: A 14 kg penguin slides on its belly down an icy, frictionless glacier. If the penguin started from…

A: Write the given values of the problem- Mass=14 kg final speed(vf) vf=14 m/s

Q: A river descends 15 m through rapids. The speed of the water is 3.2 m/s upon entering the rapids and…

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Q: In the figure, a frictionless roller coaster car of mass m = 814 kg tops the first hill with speed…

A: The roller coaster car is initially at the top of the first hill at a height of 42 m and an initial…

Q: Mathematically, explain how a car (A) with mass of 500 kg and velocity of 2 m/s has the same kinetic…

A: Given that:- mA=500 kgmB=20000 g=20 kgvA=2 m/svB=10 m/s

Q: A cyclist drives off a 30 m high cliff. If her initial speed is entirely horizontal, how fast will…

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Q: 102 kg man is skiing across level ground at a speed of 9.5 m/s when he comes to the small slope 1.4…

A: Given:- The mass of the person m = 102 kg  The speed of the skis at the ground level vg = 9.5 m/s…

Q: Bicyclists in the Tour de France do enormous amounts of work during a race. For example, the average…

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Q: At launch, a rocket weighing 2,500,000 lbs. carries a 200,000 lb. space shuttle. Assume that in the…

A: The weight of the rocket is 2500000 lbs.  The weight of the space shuttle is 200,000 lbs.  The value…

Q: 2) Show that a rock thrown from a bridge 15.0 m above the water with an initial speed of 14.0 m/s…

A: Solution: Let us consider the zero potential energy level at the water surface. At a height of 15m…

Q: A bus of mass 1000 kg with an initial velocity of 40 m/s starts up a hill and coasts upward with no…

A: Given : Initial Velocity (  u ) = 40 m/s Mass ( m ) = 1000 kg The height achieved when it stops ( h…

Q: A 60.0 kg skier with an initial speed of 13.0 m/s coasts up a 2.50 m high rise as shown in the…

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Q: A 50-kg skier with an initial speed of 13 m/s coasts up a 2.5-m-high rise as shown in the figure.…

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Q: A proton, mass 1.67e-27kg and charge +1.6e-19C, moves in a circular orbit perpendicular to a uniform…

A: Angle between magnetic field and velocity of proton is 90 degrees. Therefore, magnetic force acting…

Q: How long will it take a 751-kg car with a useful power output of 57.5 hp (1 hp equals 746 W) to…

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Q: The figure shows a 3.80-kg box being released from rest to slide down a frictionless track of height…

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Q: A 12.0 kg mass is dropped from a hot air balloon at a height of 345 m above the ground. Find it's…

A: Given : Mass dropped from the hot air balloon, m     =   12.0 kg Height at which the mass is…

Q: Resistance to the motion of an automobile consists of road friction, which is almost independent of…

A: Solution:Given:1 km/h = 0.27778 m/sW = weight of the car = 8600 Ng = gravitational acceleration =…

Q: A block of 2 kg slides down a ramp with a height of 1.5 m, then hits and sticks to another block of…

A: Given: The mass of the first block is 2 kg. The mass of the second block is 4 kg. The height of the…

Q: In a roller coaster the ride includes a vertical drop of 120 m. Suppose that the coaster  has a…

A: Given, Height of fall,h=120 m Speed at top,u=4 m/s

Q: A 75-kg skier starts from rest at the top of a hill that makes an angle of 35◦ below the horizontal.…

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Q: An object with mass of 10 kg is dropped from a height of 20 m from the ground. Assuming only the…

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Q: The driver of a passenger car puts the car to "rest" at the speed of 90 km/h, therefore, the car's…

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Q: A 60.0-kg skier with an initial speed of 12.0 m/s coasts up a 2.50-m-high rise as shown. Find her…

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Q: In the figure, a frictionless roller coaster car of mass m = 810 kg tops the first hill with speed…

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Q: A 1-kilogram rock is thrown directly downward from the top of a 70-meter-tall building with an…

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Q: A child of mass m = 25 kg starts from rest and slides without friction from a height h along a slide…

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Q: An artillery shell is fired at a target 200 m above the ground. When the shell is 100 m in the air,…

A: In order to answer this issue, we must ascertain the artillery shell's velocity at the time of…

Q: Resistance to the motion of an automobile consists of road friction, which is almost independent of…

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Q: A 0.75 kg rocket in a fireworks display is launched from rest and follows an erratic flight path to…

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Q: A sledgehammer of mass m = 1.1 kg falls freely vertically downward from a height of h = 2.8 m at an…

A: By conservation of energy mgh+1/2mv2=1/2mVf2 Also F=ma

Q: E Consider an elevator car (lift) with a mass of 700kg which call carry up to 600kg of passengers.…

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Q: Scenario: Some Marines are lowering a 170 kg sled loaded with ammunition down a hill, when the rope…

A: We have givenm=170 kgInitial speed (u)=1.9 m/sFinal speed (v)=0Height loss (h)=4.3 m

Q: If a 1814KG car crashes on water barrel at 27.8m/s . How much force is being applied to the barrel…

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Q: You reach out of a window 15 m above the ground and toss a ball straight up with a speed of 10 m/s.…

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Q: A 112 kg man is skiing across level ground at a speed of 8.9 m/s when he comes to the small slope…

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Q: The figure here shows a plot of potential energy U versus position x of a 0.888 kg particle that can…

A: Given- Mass of the particle m= 0.888 kg UA=15 JUB=35 JUC=45 JThe particle is released at x=4.50…

Q: bucket of water of mass 20 kg is pulled at constant velocity up to a platform 45 meters above the…

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