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Q: What happens to the kinetic energy if the bullet's mass is quadrupled while its velocity is halved?…

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Q: How much work input by the second bicyclist's muscles was required to accelerate themselves…

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Q: The "00" NASCAR car driven by Michael McDowell is speeding with 180 miles per hour, which is 80.5…

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Q: Calculate the kinetic energy in Joule, of a car of mass 1000kg travelling at 115km/h.

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Q: A 2-lb stone is dropped from a height h and strikes the ground with a velocity of 50 ft/s. (a) Find…

A: Given data :                Mass of the stone , m = 2 lb                Velocity of stone when it…

Q: A 70.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.9 m/s.…

A: The 70 kg athlete jumps off the trampoline with an initial velocity of 8.9 m/s. The force acting on…

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: Which has more kinetic energy: a 0.0019-kg bullet traveling at 409m/s or a 6.2 x 10^7 -kg ocean…

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Q: The skateboarder weighs 75 kilogram. Calculate the potential energy of the skateboarder sliding on…

A: potential energy is, U=mgh

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: Which has more kinetic energy: a 0.0012 kg bullet traveling at 405 m/s or a 5.3 x 10^7 kg ocean…

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Q: What is the velocity of a 1000 kg car with 480,000 J of kinetic energy? Can you determine its…

A: Given data:  Mass (m) = 1000 kg Kinetic Energy (KE) = 480,000 J Required: The velocity (v)

Q: How fast must a 20.0 kg skater travel to have kinetic energy of 380 Joules? How high must a 4.0 kg…

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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: Calculate the kinetic energy of a 10 g bullet travelling at a velocity of 2500 km/h.

A: Given data:  Mass (m) = 10 g = 0.010 kg Velocity (v) = 2500 km/h Required: The kinetic energy (KE)

Q: How much energy is lost to a dissipative drag force if a 60-kg person falls at a constant speed for…

A: Given data :  Mass of the person , m = 60 kg  Distance, S = 15 meter  Falls at constant speed  To…

Q: A large cruise ship of mass 7.00 × 10’ kg has a speed of 10.6 m/s at some instant. (a) What is the…

A: Given, mass of ship, m=7 x 107 kg Speed at some instant, v=10.6 m/s

Q: A 23.0-kg file cabinet of is sliding down a frictionless ramp for a distance of 5.00 m as shown. Use…

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Q: A toad with mass of 188 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: Given: Toad's mass, m=188 g=0.188 kg Toad's jumping angle w.r.t horizontal, θ=35° Initial velocity,…

Q: A test ballistic missile, having a mass of 500 kg, is launched straight up into the air from the…

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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: the kinetic energy, why is there a (1+x2^2) in front of x_dot_two^2?

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Q: A speak takraw ball with mass 8.4 kg was thrown with an initial upward velocity component of 6.7 m/s…

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Q: A ball of 1,500 grams is kicked at an angle of 35° with the ground with an initial velocity V0. a)…

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Q: A 32.9_kg object is dropped from a height of 84_m. Use the conservation of energy to find the speed…

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Q: s thrown vertically u peed of 12.0 m/s. W

A: Given as, u= 0.48 kg, m= 12.0 m/s.

Q: A running 53-kg cheetah has a top speed of 28 m/s. (a) What is the cheetah's maximum kinetic energy?…

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Q: Calculate the kinetic energy of a ×3.4104kg airplane moving at a speed of 0.31kms. Round your answer…

A: We know the kinetic energy of an object is the energy stored in the object due to its motion. It…

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: A large cruise ship of mass 6.30 x 107 kg has a speed of 10.2 m/s at some instant. (a) What is the…

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Q: Which has more kinetic energy: a 0.0010-kg bullet traveling at 389 m/s or a 5.8  107-kg ocean liner…

A: Determine the kinetic energy of the bullet traveling at 389 m/s as follows.…

Q: of kinetic friction be e the sled moves be

A: Given: Mass of sled is 5 kg Initial speed is 2.4 m/s Kinetic friction coefficient is 0.10

Q: A running 40-kg cheetah has a top speed of 31 m/s. (a) What is the cheetah's maximum kinetic energy?…

A: Answer:-  Given  Mass(m) = 40 kg  Speed (V) = 31 m/s  (a) We know that  Kinetic energy (K.E) = (1/2)…

Q: A 69.0 kg diver is 3.30 m above the water, falling at speed of 4.60 m/s. Calculate her kinetic…

A: Given  Mass of diver m= 69kg Initial Height of diver hi = 3.30m Initial speed of diver Vi = 4.60m/s…

Q: If a ball weights 30 N what vertical height does it rise to if it has 180 j of energy at the top of…

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Q: Peter saw Lara Jean running on the school's track field. He accelerates from rest to 6.6 m/s within…

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Q: A car of mass 920.0 kg accelerates away from an intersection on a horizontal road. When the car…

A: mass of car (m) = 920 kg speed (v) = 12.4 msNet power (P) = 5300 W

Q: Calculate the kinetic energy in Joule, of a car of mass 1300kg travelling at 50km/h.

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Q: A toad with mass of 180 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

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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: 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: A D-kg rock is dropped and allowed to fall freely. Find the initial kinetic energy, the final…

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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: You kick a 225 g rock from the edge of a cliff while hiking along the edge of the Grand Canyon. (a)…

A: Given: Rock mass m =225 g = 225×10-3 kg Time t1 =4 s

Q: A hydroelectric generator converts kinetic energy of water into electrical energy. Each second 2264…

A: (A) Total energy available per second

Q: Using energy considerations, calculate the average force (in N) a 69.0 kg sprinter exerts backward…

A: Given Data : The mass of the sprinter is given as m = 69 Kg. The initial velocity of the sprinter is…