vicky mass was 101kg, while mary is at 96kg, and they both jumped up exactly 1.0m.  Who had more kinetic energy at take-off?

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

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Q: A force F = 3i + 7j + 7k acts on a 2 kg mobile object that moves from an initial position of D1 = 3i…

A: We know average power P=Wt, where W=work and t=time And Work W=F.→d→ where, d→=df-di Given data:…

Q: Two 4.0 g bullets are fired with speeds 40 m/s and 120 m/s, represectively.  What are their kinetic…

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Q: You give 90 J of kinetic energy to a 1 kg stone when you throw it. By how much do you increase its…

A: The energy gained by the stone = 90 Joules. Mass of the stone (m) = 1 kg.

Q: aneed of 20. meters per second (4) four times as great (3) one-fourth as great 2m and speed v, and…

A: As per Bartleby rules, we can only answer one question or three subparts of one question. So, I am…

Q: A car of mass 1,000 kg moves with a speed of 5.00 m/s. If the car triples its speed to 15.0 m/s then…

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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: 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: 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: In a bowling alley, the distance from the foul line to the head pin is 59 ft, 10 13/16 in. (18.26…

A: The speed is, v=dtv=18.26 m2.0 sv=9.13 m/s

Q: A world-class sprinter running a 100 m dash was clocked at 5.4 m/s 1.0 s after starting running and…

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Q: Suppose an automobile has a kinetic energy of 2000 J. When it moves with three times the speed, what…

A: The kinetic energy of an object is calculated by using the formula E=12mv2 , where m is the mass of…

Q: a toy car (0.50kg) runs on a frictionless trackand has an initial kinetic energy of KE =1.6. over…

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Q: At what speed does a 1000 kg compact car have the same kinetic energy as a 2.00×10* kg truck going…

A: Given : mass of compact car, mc = 1000 kg             mass of truck, mt = 2.0 × 104 kg…

Q: How many joules of kinetic energy does a 750 kg automobile travelling at a typical highway speed of…

A: Given, Mass of the automobile m = 750 Kg Speed of the automobile v = 65 min/h =29.06 m/s   We know…

Q: Ahmed carrying a weight of 50 N walks a distance of 2m as shown in figure. The work done by him is…

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Q: How much power is needed to lift a 12.5 kg sack of rice from the ground to a height of 1.5 m within…

A: According to guidelines we need to solve only first question kindly repost other questions in the…

Q: How many joules of kinetic energy does a 750 kg automobile travelling at a typical highway speed of…

A: Given, Mass of automobile,m=750 kg Speed of automobile,v=65 mi/h=29 m/s Final speed of car, vf=v2

Q: Which of the two animals possesses greater kinetic energy in catching their prey: a 120 kg lioness…

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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: How fast should a 100 kg football player run to have the same kinetic energy as a 156 kg player…

A: Given data:  Mass of first player (m1) = 100 kg Mass of second player (m2) = 156 kg Speed of second…

Q: A girl weighing 400 N takes 3 seconds to run up a 4-m high stairs. Which of the following gives the…

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Q: If the resultant force acting on a 18.0 kg object is equal to (4î – 6j)N, what is the kinetic energy…

A: Given data: Mass m = 18 kg Force F=4i^-6j^ Initial position A→=3i^-2j^ Final position B→=4i^-j^

Q: What is the average power must produce to accelerate car with 1500 kg from rest to the speed 30…

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Q: A baseball (mass = 145 g) is thrown straight upward with kinetic energy 4.35 J. (a) When the ball…

A: Given: The mass of the baseball is m=145 g. The kinetic energy is E=4.35 J. The distance of the…

Q: In a "pop fly a 1.5 x 10^2 g baseball is projected vertically upward with an initial kinetic energy…

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Q: A roller coaster is at the top of a 72 m hill and has a mass of 134 kg.  The coaster at this moment…

A: given :- height of roller coaster h = 72 m          mass of roller coaster m = 134 kg  g =…

Q: A record was set for stair climbing when a man ran up the 2300 steps of the Empire State Building in…

A: Average power output is,

Q: Car B is traveling twice as fast as car A, but car A has three times the mass of car B. Which car…

A: Kinetic energy of a body is given by, KE=12MV2................(1)

Q: Which has greater kinetic energy? A 7.3 kg object moving at 5.6 m/s or a 9.6 kg object moving at…

A: m1=Mass of first particle=7.3 kgv1=Velocity of first particle=5.6 m/sm2=Mass of second particle=9.6…

Q: Suppose that 3 of work is needed to stretch a spring from its natural length of 30 cm to a length of…

A: Given: The work done d is 3 J from its natural length of 30 cm to 45 cm.   To find: The work is done…

Q: 16. A person runs at a speed of 4.50 m/s uses 760 J of energy. Solve for the person's mass. (ans:…

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Q: Which has more kinetic energy, a 0.0020-kg bullet traveling at 400 m/s or a (6.4 x 107 )-kg ocean…

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

A: Given: Mass (M) = 2.1 kg  Initial velocity (V1) = 0.70 m/s  Final velocity (V2 ) = 3.5  m/s

Q: The change in yours's potential energy if you jumped 60cm vertically if your mass is 70 kg is o…

A: Given data:  Height (h) = 60 cm = 0.60 m Mass (m) = 70 kg Acceleration due to gravity (g) = 9.8 m/s2…

Q: At what speed does a 1000 kg compact car have the same kinetic energy as a 20,000 kg truck going 25…

A: Given: The mass of car is 1000 kg. The mass of truck is 20000 kg. The speed of car is 25 km/h.

Q: C7 15.) A baseball (mass = 145 g) is thrown straight upward with kinetic energy 10.15 J. (a) When…

A: Given Data: The mass of a baseball is, m=145 g The initial kinetic energy of a baseball is,…

Q: If the speed of a vehicle increases by 22%, by what factor does its kinetic energy increase

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Q: A bodybuilder lifted a 1000 N weight 20 cm above his head as shown in the figure below. The athlete…

A: Given, weight, mg = 1000 Ndistance above his head, h = 20 cmheight of the bodybuilder, L =180 cmg =…

Q: A certain truck has twice the mass of a car. Both are moving at the same speed. If the kinetic…

A: Given data:  Mass of truck = 2 × mass of car Speed of the truck and car is same. The kinetic energy…

Q: A 1000.0 kg car is moving at 15 kmvh. If a 2000 0 kg truck has 61 times the kinetic energy of the…

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Q: A 0.500 kg bullet is fired from a gun at 25.0 m/s, how much kinetic energy does it have? 156.3…

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Q: Two cars are moving. The first car has twice the mass of the second car, but only half as much…

A: Given, Mass of car A (mA)= 2m Mass of car B(mB)= m Kinetic energy of car A (KA)= K Kinetic energy of…

Q: Killer whales are known to reach 32 ft in length and have a mass of over 8,000 kg. They are also…

A: Given, Mass of Shamu(m)= 7.99*10³ kg Initial velocity of Shamu(vi)= 0 m/s Final velocity of…

Q: Name: A person's heart and head are 1.3 m and 1.8 m above the feet, repectively. Determine the…

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