When the speed of your car is doubled, by what factor does its kinetic energy increase? (a) V2. (b) 2. (c) 4. (d) 8.

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

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Q: When the speed of your car is tripled ,by what factor does its kinetic energy increase Select one:…

A: Assume the mass of the car is denoted by m. Assume the velocity of the car is denoted by v.

Q: 20. A 7.00-kg bowling ball moves at 3.00 m/s. How fast (in m/s) must a 2.45-g Ping-Pong ball move so…

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Q: When a jumbo jet slows and descends on approach to landing, there is a decrease in both its kinetic…

A: According to the law of conservation of energy, the energy cannot be created or destroyed, but it…

Q: Energy of a Roller Coaster Car 500 450 400 350 When is kinetic energy changing at the fastest rate?…

A: In this problem,, it is asking the interval at which the fastest rate of kinetic energy change. So,…

Q: Does the kinetic energy of a car change more when it goes from 10 to 20 km/h or when it goes from 20…

A: The change in kinetic energy when the car moving from 10 to 20 km/h is ΔKE=12m20 km/h2-10…

Q: When the speed of the moving car is doubled, how much more kinetic energy does it have?

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Q: Body A has a mass of 0.001KG and move in with the speed of 10m/s, where body B has a mass of  5 KG…

A: Given:Body (A)Mass,m=0.001 kgVelocity,V=10 m/sBody(B)Mass,m=5 kgVelocity,V=1 m/sBody (A)Kinetic…

Q: When I throw my keys straight up in the air and let them fall, why is there more Kinetic energy and…

A: According to conservation of energy  (Total energy )final  = (total energy ) initial

Q: 18. If the matchbox car is released from the top of the track on the left side, rank the kinetic…

A: Solution: as given that the different position of the car

Q: While pushing her younger brother on a swing, Ivy exerted an average force of 56 N through a…

A: Given Data : The average force exerted by Ivy is given as F = 56 N. The distance covered by ivy…

Q: Jack and Jill are both helping to fetch a pail of water in a hill that is 16 meters high. Each of…

A: Given: mass of water m = 5 liter = 5kg distance travelled d = 16m time taken by Jack t1=1.5hrs  time…

Q: Say I lift a box from the ground straight up to 1m in 2s. If I lift the same box from the ground but…

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Q: A cheetah can run briefly with a speed of 31m/s suppose a cheetah with a mass of 47 kg runs at this…

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Q: The kinetic energy of a car is 1.0 x 10^5 J. Calculate its kinetic energy if the car’s speed is a.…

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Q: A 10-Newton object moves to the left at 1 m/s. Its kinetic energy is approximately ____ Joules.…

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Q: When the speed of your car is doubled, by what factor does its kinetic energy increase? a. sqrt of 2…

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Q: If your friend pushes a lawnmower 4 times as far as you do while exerting only half the force, which…

A: The work is force times distance. Your friend uses a half of the force but goes four times as far.…

Q: 11. If 50 J of work are done on a cart, how much energy does the cart have? O 50 J O 100 J O OJ O 25…

A: Given,  Work done on cart = 50 J

Q: A 0.2 kg ball is rest on edge of the top of a 1 m height table. Does the ball have kinetic energy?…

A: From the question it is given that:  Mass of ball: m = 0.2 kg  Height of table: 1m

Q: How much work is required to increase the speed of a 2.1 kg skate- board from 0.70 s to 3.5 A 0.75 J…

A: Given data:  Mass (m) = 2.1 kg Initial velocity (v0) = 0.70 m/s Final velocity (v) = 3.5 m/s…

Q: Two identical golf carts move at different speeds. The faster cart has twice the speed and therefore…

A: Kinetic energy is the energy possess by an object due to its motion. K = (1/2)mv2  K is proportional…

Q: A car starts from rest and accelerates to 30 mph. Later, it gets on a highway and 1) 0 30 mph…

A: To determine :A car starts from rest and accelerates to 30 mph.Later, it gets on a highway and…

Q: A 65 kg track star can get to her maximum speed of 8.5 m/s in 2.8 seconds. Calculate her power while…

A: Mass of track star,(m)=65 kg -----(1) [Given] Maximum speed of track star,(v)=8.5 m/sec -----(2)…

Q: Does a car’s kinetic energy change more when the car speeds up from 10 to 15 m/s or from 15 to 20…

A: The change in the kinetic energy of a car is given by the following equation. Here, vf is the final…

Q: How much kinetic energy will a 70 kg diver have when he reaches the water after jumping off a 5.0 m…

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Q: 20.1f the speed of an object is doubled, its kinetic energy will be (a) halved (b) quartered (c)…

A: According to question we need to find that If the speed of an object is doubled, its kinetic energy…

Q: Which would cause the greatest increase in the kinetic energy of a moving object? Doubling the mass…

A: Let the mass of an object = m  Let the speed of an object = v  Let the kinetic energy of moving…

Q: An apple hanging from a limb has potential energy because of its height. If it falls, what becomes…

A: From conservation of energy, just before hitting the ground, the potential energy will convert into…

Q: The famous cliff divers of Acapulco leap from a perch 35 m above the ocean. How fast are they moving…

A: Details Given: Height of cliff = 35m The velocity of cliff divers is calculated from the formula of…

Q: Two identical golf carts move at different speeds. The faster cart has twice the speed and therefore…

A:

Q: 3. When the speed of your car is doubled, by what factor does its kinetic energy increase? a. sqrt…

A:

Q: When a driver applies brakes to keep a car going downhill at constant speed and constant kinetic…

A: In the given case, the car is moving with a constant speed and constant kinetic energy. The…

Q: If the speed of the car is doubled, the kinetic energy of KE = (1/2)mv^2 * Quadrupled O Doubled O…

A: Here given that a car is moving with a speed doubled from its previous .We have to find the final…

Q: 4. A0.15 kg ball is thrown into the air and rises to a height of 20.0 m. How much kinetic energy did…

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Q: Ball A whose mass is 15.8 g moves at 3.6 m/s. How fast must a 9.9-g ball B move so that the two…

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Q: How much kinetic energy will a 70 kg diver have when he reaches the water after jumping off a 5.0m…

A: Scenario - A diver jumps from a certain height into water. Given : Diver mass →m=70 kg Dive height…

Q: 60. A cart of mass m traveling at speed v has energy KE. If the mass of the cart is doubled and the…

A: The given data   The mass of the cart  is m The velocity is v

Q: A 70.0 kg diver is 3.50 m above the water, falling at speed of 6.40 m/s. Calculate her kinetic…

A: According to question --- Given that-- mass = 70 kg. heigh h = 3.50 m velocity v = 6.40 m/sec. We…

Q: By what factor does the 1) no change at all kinetic energy of a car 2) factor of 3 change when its…

A: Kinetic energy of car = 1/2 mv2 Given, it's speed is tripled.  So new speed is 3v.

Q: 30 m B 25 m I 10m 77 Calculate the kinetic energy at point B given mass equals 100 kg.

A: use the law of conservation law of energy at point A and B for find kinetic energy.

Q: The first car has twice the mass of a second car, but only half as much kinetic energy. When both…

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Q: Does the kinetic energy of a car change more when it goes from 10 to 20km/h or when it goes from…

A: Calculating the change in kinetic energy for the given velocity ranges:

Q: Jack and Jill are both helping to fetch a pail of Nater in a hill that is 16 meters high. Each of…

A: Height of hill = 16 m amount of water carried by each = 5 Litres Time taken by Jill = 1 hour Time…