3. A rollercoaster car with a mass of 300 kg is at the top of a rollercoaster track at a height of 60m and it starts to accelerate down the track, as it does so it loses 55J of energy due to friction. What is its maximum possible speed at the bottom of the track?

Q: A 18-kg child slides down a 4.0m-high playground slide. She starts from rest and her speed at the…

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Q: 1. A 75 kg skier starts with an initial speed of 2 m/s down a 40 m high ramp. They launch off a ramp…

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Q: An 85.1-kg dad climbs to the second floor of his house. His gravitational potential energy increases…

A: Given data: Increase in PE of Dad = 1.95*103 J Mass of dad (M) = 85.1 kg ass of daughter (m) = 21.4…

Q: 6. A 29.00-kg child initially at rest slides down a playground slide from a height of 2.50 m above…

A: As per our guidelines, we can answer only 1 question. please resubmit remaining questions.

Q: 12. In the diagram below, if the mass of the car is 100 kg, R = 8 meters and h = 30 meters, then…

A: Mass of car: m = 100 kg Initial speed of car = 0 m/s Initial height of car: h = 30 m Final height of…

Q: A 10 kg sled with a kid inside is sliding down a hill on dry snow. At point A, it has a speed of v=…

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Q: 2. Larry and Moe carelessly lean against a 300 kg piano. It teeters off the edge of a 1.50 meter…

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Q: A particle of mass m = 10 kg moves along the x-axis. A graph of its potential energy as a function…

A: Given that an object of mass m=10 kg is moving along the x-axis. Now the particles is released from…

Q: 4. A 230-kg roller coaster reaches the top of the steepest hill with a speed of 6.40 km/h. It then…

A: To solve this problem we use the concept that total energy of the system remains constant

Q: child going sledding gets pushed by her parent until she had a speed of 10 m/s. She then starts down…

A: a) Energies considered in this system 1) Kinetic Energy of sled 2) Potential Energy of the total…

Q: 4. A roller coaster car tops the highest point of the ride (200 ft above the ground) at 10 ft/s .…

A: conservation of Mechanical Energy states: total amount of mechanical energy in a closed system in…

Q: A 60kg woman does a step-up/step-down task using a 25cm platform. A full step cycle consists of a…

A: Given, mass=60 kg h=25 cm =0.25 m a. Energy needed to complete 1 step-up= mgh=60×9.8×0.25=147…

Q: Q17. The potential energy of a 0.20-kg particle moving along the x axis is given by U(x) = (8 * 2 -…

A: 17. Given that,  Mass of particle, m = 0.2 kg Potential energy, U(x) = 8x2 - 2x4 Distance, x = 1m

Q: "25 kg bear slides, from rest, 8 m down a Lodgepole Pine tree, moving with a speed of 5.6 m/s just…

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Q: A ball of mass 5 kg is attached to a spring that is compressed an amount 0.05m with spring constant…

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Q: Jacob is riding his bike down a tall hill. At the top of the hill, he has 2800J of potential energy.…

A: Whether the total amount of energy at the top is equal to the total amount of energy at the bottom…

Q: A 2-kg block is thrown upward from a point 20 m above Earth's surface. At what height above Earth's…

A: Given that,Mass of block : m = 2 (kg)Height : h1 = 20 (m)Change in gravitational potntial energy :…

Q: A 75 kg skier starts with an initial speed of 2 m/s down a 40 m high ramp. They launch off a ramp…

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Q: When jogging at 13 km/h on a level surface, a 70-kg man uses energy at a rate of approximately 850…

A: Given mass of a man is m=70kg the velocity of the man on a level surface is v=13km/h=3.611m/s and…

Q: 5. A 0.50-kg ball is thrown vertically upward with an initial speed of 16.0 m/s. What is the kinetic…

A: Given Mass of ball = m = 0.50 kg initial velocity= u = 16 m/s We have to calculate the kinetic…

Q: A spring, with a spring constant k = 30,000 N/m, is compressed from a length of 15.0 cm to 10.0 cm,…

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Q: 4. A 73 kg skier starts at rest at the top of a 100 m high hill. He skies down this hill and back up…

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Q: .At an amusement park, a swimmer uses a water slide to enter the main pool. If the swimmer starts at…

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Q: So imagine a wombat named Horace at rest. It's somehow on the top of a long telephone pole. It has a…

A: Ans:- Image-1