48. A 5.0-kg body has three times the kinetic energy of an 8.0-kg body. Calculate the ratio of the speeds of these bodies.

Q: in Q3. A 7kg bowling ball moves at 3m/s. How fast must a 2.45g Ping-Pong ball moves so that thecwo…

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Q: Problem 2: Suppose an elephant has a mass of 2950 kg. How fast, in meters per second, does the…

A: Given: The mass of elephant is m=2950 kg. The mass of the sprinter is M=69.5 kg. The velocity of…

Q: 2. What is the mass of a truck if its kinetic energy is 5500 J and travels at a speed of 65 km/h. 65…

A: Given. Mass = m velocity = 65 km/h V = 65*1000/3600 m/s. V = 18.055 mps.

Q: 11. Suppose a motorcyclist rides a certain high-speed motorcycle. He reaches top speed and then…

A: Given- Combined mass of the motorcycle and motorcyclist , m =500 kg Maximum height reached by the…

Q: 14. What is the total kinetic energy of an object that is 5 kg and moving 25 m/s due West? (2 pts.)…

A: Given  Mass (m) = 5 kg  Speed (v) = 25 m/s    Kinetic energy of the object  KE = (1/2) mv2

Q: 2. An object has a kinetic energy of 25 J and a mass of 34 kg , how fast is the object moving?

A: Given, Mass of an object, m=34Kg Kinetic energy of an object, KE= 25J

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: 38)) How many joules would the change in potential energy be when an object with a mass of 8 kg…

A: Given : m = 8 kg h1 = 15 m h2 = 20 m g = 10 m/s2

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: A 29 750 kg airplane travelling at 305 m/s. (a) How much is its kinetic energy( in J)? (answer as…

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Q: 10. A 2 kg ball falls freely from a height of 3 m. What is its kinetic energy in joules when it hits…

A: Given data:  Ball falls freely  Mass (m) = 2 kg Height (h) = 3 m Required: The kinetic energy of the…

Q: In 1896 in Waco,Texas,William Crush parked two locomotives at opposite ends of a 6.4-km-long track,…

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Q: A 80.0-kg fireman slides down a 3.00-m pole by applying a frictional force of 400. N against the…

A: When the fireman slides down a pole, it applies a frictional force on pole which is opposite to it's…

Q: 12. A mass of 1 kg. was released from a 1,000 meter height. What is its Kinetic Energy at the middle…

A: Given that- M=1kg Heigh(h)=1000m    To determine that- What is it kinitic energy at the middle of it…

Q: In 1995, Karine Dubouchet of France reached a record speed in downhill skiing. If Dubouchet's mass…

A: The kinetic energy depends on the mass and speed of the object. The kinetic energy is directly…

Q: 10. What is the kinetic energy of a 1900 pound car travelling at 40 meters per second? No new data…

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Q: 84. A 200-g steel ball is tied to a 2.00-m "massless" string and hung from the ceiling to make a…

A: According to the law of conservation of energy , energy can neither be created or destroyed but can…

Q: A 5.00-kg bowling ball moves at 6.00 m/s. How fast must a 2.35-g Ping-Pong ball move so that the two…

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Q: How fast would an 87 kg man need to run in order to have the same kinetic energy as an 8.0 g bullet…

A: The kinetic energy of a body of mass m moving with velocity is given by, K=12mv2

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

A: The energy of the object that is because of the motion of the object is known as kinetic energy.…

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: A bus having a mass of 6000 kg moves at a velocity of 100 km/h. If it carries 50 passengers having a…

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Q: 2. A car with an initial velocity of 36 km/h accelerates at 54 km/h² for 3600 s. By which factor…

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Q: 1. Calculate the potential energy, kinetic energy, mechanical energy, velocity, and height of the…

A: According to bartleby's guidelines, I am allowed to solve only 1 question at a time.

Q: 90. What happens to the kinetic energy of a moving object if the net work done is negative? * a. The…

A: Explanation: When negative work is done on a moving object, the direction of the force on the object…

Q: 3. A 10 kg mass is moving with a speed of 5.0 m/s. How much work is required to stop the mass? * 100…

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Q: 6.00 × 105 J of work are done on a 2210 kg car while it accelerates from 15.0 m/s to some final…

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Q: 5) A particle of mass 200g is thrown vertically upwards with a speed of 10ms-1, the work done by…

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Q: Two objects are connected by a light string passing over a light frictionless pulley as shown in…

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Q: fa Saturn V rocket with an Apollo spacecraft attached had a combined mass of 3.2 x 105 kg and eached…

A:

Q: 46.3-g golf ball is driven from the tee with an initial speed of 44.8 m/s and rises to a height of…

A: Given  Initial velocity u  = 44.8 m/s Mass m = 46.3 g = 46.3 ×10-3 kg  Maximum height H = 20.5 m

Q: 7. Consider a ball thrown straight up in the air. At what position is its kinetic energy a maximum?…

A: Let us consider a ball thrown upwards in the air with an initial velocity of 'u' m/s. As the ball is…

Q: 8. A 30.00-kg child initially at rest slides down a playground slide from a height of 2.80 m above…

A: Given that, Mass of the child (m)= 30 kg Initial speed (u)= 0 Height of the slide from the ground…

Q: Releasing some frustration at the end of the semester, you throw your physics book (mass of 2.7 kg)…

A: Given Mass of book ( m ) =2.7kg Height of building ( h ) = 25m Initial velocity ( u ) = 6m/s

Q: 16. (I) (a) If the kinetic energy of a particle is tripled, by what factor has its speed increased?…

A: We know that  K.E. = 12m v2 a)  so if K.E. has increased by 3 times than the velocity factor must…

Q: If you triple the velocity of an object, by how much does this change the object's kinetic energy?

A: Let the initial velocity of object = vLet the mass of object = m

Q: 2. What is the kinetic energy of a 3.0 kg book bag just before it hits the floor after a 1.5 m fall?…

A: The given values are,

Q: 6. A basketball whose mass is 0.640 kg falls from rest through a height of 5.40 m, and then bounces…

A:

Q: 89. What happens to the kinetic energy of a moving object if the net work done is positive?" a. The…

A: According to the Work-Energy theorem, the force required to move an object at some distance is equal…

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

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Q: 7. A basketball is thrown in the air. Part way up, the potential energy is 100 J, and its kinetic…

A: (C) 125J The mechanical energy of basket ball is 125J.

Q: Releasing some frustration at the end of the semester, you throw your physics book (mass of 4.3 kg)…

A: The kinetic energy of the book just after the person let is go is given by, KEi=12mvi2 Here, m is…

Q: A 7.0 kg bowling ball moves at 2.50 m/s. How fast must a 2.20 g Ping-Pong ball move so that the two…

A: Step 1Kinetic energy of the object is the energy possesed by the body due to motion.It is given as

Q: How fast would a(n) 72 kg man need to run in order to have the same kinetic energy as an

A: the kinetic energy is directly proportional to the product of mass and the square of the velocity.

Q: A 7.0 kg bowling ball moves at 2.45 m/s. How fast must a 2.60 g Ping-Pong ball move so that the two…

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Q: A 5.0-kg rock is dropped, initially at rest, from a 6.0-m-high second-story window. What will be the…

A: Given: The mass of the object is 5 kg. The height of the object from the ground is 6 m. The initial…