If you are driving home from school and have to slam on the brakes to avoid hitting a car that merged into your lane without looking, what happens to your car’s kinetic energy as it comes to a rest?

Q: An elevator in Goodtaste Baguio of 8 persons-capacity with a mass of 1750 kg plus unknown total mass…

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Q: Problem 4: During an ice show, a 62.5-kg skater leaps into the air and is caught by an initially…

A: Mass (m1)= 62.5kg.      U1 = 3.8m/s Mass (m2) = 67.5kg.      U2= 0m/s

Q: If a Saturn V rocket with an Apollo spacecraft attached has a combined mass of 2.5 x 105 kg and…

A: Given data, Combined Mass of the Apollo Spacecraft (m)=2.5×105 kg Speed of the spacecraft(v)=10.4…

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

A: Given: The mass of the object is 1000 kg. The kinetic energy of the object is 480000 J.

Q: A new generation of pogo sticks lets a rider bounce more than 2 meters off the ground by using…

A: New generation of pogo sticks lets a rider bounce more than 2 meters off the ground by using elastic…

Q: There is a 2 car accident. Car 1 (1550 kg) slides on ice at 15m/s and it runs into another car…

A: Mass of car 1 is m1 = 1550 kg Speed of car 1 initially is u1 = 15 m/s Mass of car 2 is m2 = 3250 kg…

Q: uestion: A small marble of mass m slides frictionlessly with constant speed on the inner surface of…

A: The diagram is shown below  The marble is not sliding, so the forces acting on it will be balanced.…

Q: What is the kinetic energy of a 30 kg object travelling at 20 m/s? O 12kJ O0.12 kJ O 120 kJ O 12 k

A: Part (1): Given: The mass of the object is 30 kg. The speed of the object is 20 m/s.

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: A7.80 g bullet has a speed of 580 m/s when it hits a target, causing the target to move 6.10 cm in…

A: It is given that m=7.8 g=7.8×10-3 kgu=580 m/sx=6.10 cm=0.0610 m

Q: (a) A 200-kg swordfish swimming at 5 m/s rams a wooden yacht that is at rest. It’s a sword…

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Q: A 108 kg man is skiing across level ground at a speed of 9.5 m/s when he comes to the small slope…

A: Given that:-Mass of man, m=108 kgInitial speed, u=9.5 m/sHeight of final level above the ground,…

Q: A film of a long jumper shows that his center of mass rose 96 cm from launch point to the top of the…

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Q: Suppose a 330-g kookburn ( a large kingfisher bird) picks up a 65-g snake and raises it 2.1m from…

A: Given data:  Mass of bird (mb) = 330 g = 0.330 kg Mass of snake (ms) = 65 g = 0.065 kg Height (h) =…

Q: The 1630-kg car has a velocity of 34 km/h up the 11-percent grade when the driver applies more power…

A: GivenMass of car, m=1630 kgInitial velocity of car, u=34 km/hFinal velocity of car, v=56 km/hTime…

Q: "Using Energy method only" A 7.25-kg rock is dropped down with an initial speed of 9.6 m/s from a…

A: Kinetic energy of object is the energy due to motion of object. It can not be negative since it…

Q: Suppose a 370-g kookaburra (a large kingfisher bird) picks up a 65-g snake and raises it 2.6 m from…

A: Given data:   Mass of bird (mb) = 370 g = 0.370 kg Mass of snake (ms) = 65 g = 0.065 kg Height from…

Q: A 15-g bullet traveling 400 m/s in a vertical direction buries itself in a 2.8 kg block of wood at…

A: Law of conservation of momentum holds in inelastic collision.

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: A skier (of mass 55 kg) skies down the smooth (friction less) ski slope illustrated in the…

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Q: How fast would a(n) 77 kgkg man need to run in order to have the same kinetic energy as an 8.0 gg…

A: Write the equation for the kinetic energy. KE=12mv2 Here, The mass of the object is "m" The speed of…

Q: At 11 m/s, a 66 kg pole vaulter vaults over the bar. Her top speed is 1.2 m/s while she's above the…

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Q: During an ice show, a 100.0-kg skater leaps with an initial of 4.00 m/s into the air and is caught…

A: Given data: Mass of first skater, m1=100.0 kg Initial velocity of first skater,u1=4.0 m/s Mass of…

Q: Which has more kinetic energy: a 0.0012-kg bullet traveling at 412 m/s or a 5.3 x 107-kg ocean liner…

A: Given: The mass of the bullet is 0.0012 kg. The speed of the bullet is 412 m/s. The mass of the…

Q: A 1.100 kg block slides down a frictionless inclined plane (height 0.800 m), moves across a rough…

A: mass of first block (m) = 1.1 kg Initial height of first block (h) = 0.800 m work done by friction…

Q: Passengers in a car are protected by what is known as a crumple zone, where they absorb energy…

A: Mass is Initial velocity is Final velocity is Note:Find:Kinetic energy absorbed by the crumple zone…

Q: A 5.70-kg object is initially moving so that its x-component of velocity is 6.00 m/s and y-component…

A: Here, we have to calculate the Kinetic energy and change in kinetic energy

Q: A 0.90-kg block initially at rest on a frictionless, horizontal surface is acted upon by a force of…

A: From the expression for work-energy theorem W=Fdcosθ Here, θ is the angle between the direction of…

Q: 7. Two objects are connected M by a light string passing over a light, frictionless pulley as shown…

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Q: Two physics carts (both 100 g) with soft bumpers travel along a frictionless track toward each other…

A: Two objects adhere to each other after a perfectly inelastic collision. In such collisions, some…

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…

A:

Q: A 5.50-kg object is initially moving so that its x-component of velocity is 6.00 m/s and y-component…

A: Given that,Mass : m = 5.50 kgvx = 6 (m/sec)vy = −1.90 (m/sec)Here we need to find the kinetic energy…

Q: A large SUV collides with a small compact automobile in a head-on collision. Both automobiles were…

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Helmholtz Free Energy

The Helmholtz free energy is a thermodynamic potential used to calculate the measure of useful work from a closed system. This system is kept at constant temperature and volume. German physicist Hermann Helmholtz introduced this concept in 1882.