A 5 N force causes a 37 kg body to change speed from 6 m/s to 9 m/s. Over what distance does this force act?

Q: A player bounces a 0.42-kg soccer ball off her head, changing the velocity of the ball from vi (8.2…

A: Given, Mass of ball, m=0.42 kg Initial velocity, vi =(8.2x-2.3y) Final velocity, vf =(5x+3.6y)

Q: A 6.4 kg block of wood resting on a platform was hit by a 48 g bullet travelling upward with a speed…

A: Given: M=6.4 kgm=48g=0.048 kgubullet=1124 m/sublock=0 m/svbullet=691 m/s

Q: A 5.2 x 105 kg subway train is brought to a stop from a speed of 0.95 m/s in 0.57 m by a large…

A: Given, The mass of the subway train = 5.2×105 kg =m  Initial velocity of the train = 0.95 m/s = Vi…

Q: A 800 kg car is moving at 20 m/s. The driver sees a barrier in front of him. If it takes the car 50…

A: We know, v2 = u2 - 2aS Where u is the initial velocity v is velocity after a displacement S. a is…

Q: A 2.0 kg object is moving to the right with a speed of 1.0 m/s when it experiences the force shown…

A: Given:Mass of the object = 2 kgInitial speed of the object = 1 m/s

Q: At what speed must a particle move in order to double its mass? a. 2.6x108 m/s b. 2.8x108 m/s…

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Q: What is the average power expended to accelerate a bullet of 15grams mass to a speed of 900 m/sec in…

A: Power is the rate of doing work.P=W∆t...(1) We have work done defined as W=F.S,.....(2) force…

Q: 1. A 3 kg fish moving at 0.5 m/s swallows a 0.5 kg fish at rest. What is the speed of the bigger…

A: Comment: Since we only answer up to  1 question, we’ll answer the 1st question only. Please resubmit…

Q: Carrie is pushing a 39.8 kg shopping cart at a speed of 0.744 m/s. If she applies a force of 6.59 N,…

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Q: A bullet was fired at the trunk of a tree. If the mass of the bullet is 25 grams and has a speed of…

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Q: What has more momentum, a car sitting at a stop light or a bike moving at 7 m/s.

A: Given : Velocity of car = 0 because car is sitting at a stop. Velocity of bike = 7 m/s

Q: 9. What is the velocity of a 5000 kg truck whose KE is 360 kJ? Group of answer choices 31 m/s 144…

A: Given value--- mass = 5000 kg. Kinetic energy = 360 kJ. We have to find--- velocity?

Q: Your mass is 69.6 kg, and the sled s mass is 20.9 kg. You start at rest, and then you jump off the…

A: person's mass, mp=69.6 kgmass of sled, ms=20.9 kginitial speed of both person and sled together, u =…

Q: Your mass is 73.5 kg, and the sled s mass is 18.7 kg. You start at rest, and then you jump off the…

A: We know that the momentum must remain conserved. Hence m1v1+m2v2=m1v1'+m2v2'

Q: A bumper car with a mass of 86 kg is traveling at 3.6 m/s. A bumper car with a mass of 98 kg is…

A: Given: The mass of the first car is 86 kg. Initial velocity of the first car is 3.6 ms. The mass of…

Q: A hungry 4.66 kg fish swimming at 2.66 m/s swallows a 0.51 kg fish that was swimming towards it at…

A: Given that Mass of hungry fish m1 = 4.66 kg Initial velocity of hungry fish u1 = 2.66 m/s Mass of…

Q: 69. A 2.0-kilogram mass falls freely for 10. meters near the surface of Earth. The total kinetic…

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Q: A particle of mass 2.5kg moves according to the equation x(t)=10t?, where x is in meters and t is in…

A: Given The mass of the particle is m = 2.5 kg. The equation for the distance is x(t) = 10t2. The…

Q: A 23 kg child is coasting at 3.6 m/s over flat ground in a 6.0 kg wagon. The child drops a 1.3 kg…

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Q: A 160 g baseball is thrown with a speed of 20 m/s. It is hit straight back toward the pitcher at a…

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Q: Tinkerbell has a velocity of 5 m/s [S] and a kinetic energy of 22.5 J, what is her mass? O 2.25 kg…

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Q: A student pushes a physics textbook of mass 1.11 kg across a table with a horizontal force of 5.81…

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Q: Your mass is 61.8 kg, and the sled s mass is 20.9 kg. You start at rest, and then you jump off the…

A: mass of person, M=61.8 kg Sled mass, m= 20.9 kg Sled speed, vs = 5.49m/s

Q: A constant force of 8.0 N is exerted for 4.0 s on a 16-kg object initially at rest By how much will…

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Q: A 79 kg man lying on a surface of negligible friction shoves a 50g stone away from himself, giving…

A: Given Mass of Person is M=79 kg Mass of stone is m=50×10-3 kg Initial total momentum is pi=0

Q: A hungry 5.37 kg fish swimming at 1.86 m/s swallows a 0.96 kg fish that was swimming towards it at…

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Q: A 0.35 kg baseball is dropped from the rest from a height of 3.85 m. How fast will it travel just…

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Q: is the final speed?

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Q: A boy hits a 0.05-kg golf ball from rest, giving it a speed of 75 m/sec. If the club was in contact…

A: Given that the mass of the ball and final and initial velocity. Then We have to determine the value…

Q: A 1500 kgkg car skids to a halt on a wet road where μk = 0.49. How fast was the car traveling if it…

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Q: A 500 gram cart rolls with negligible Fashion along a straight flight track at 2.5 m/s until it…

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Q: Your mass is 73.3 kg, and the sled s mass is 10.1 kg. You start at rest, and then you jump off the…

A: Given  Mass of man (M) = 73.3 kg Mass of sled (m) = 10.1 kg speed of sled when man jumps from it v…

Q: You are sitting in a sled, at rest on a pond covered with nice, thick, frictionless ice. Your own…

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Q: A hungry 3.89 kg fish swimming at 2.43 m/s swallows a 1.25 kg fish that was swimming towards it at…

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Q: A lorry of mass 1000 kg is moving with speed 3 ms-1 when a 200 kg sack of rubbish is dropped…

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Q: A hungry 6.61 kg fish swimming at 2.37 m/s swallows a 0.69 kg fish that was swimming towards it at…

A: Given data:  Mass of hungry fish (m1) = 6.61 kg Initial speed of hungry fish = 2.37 m/s Mass of…

Q: A 6.0 ✕ 104 kg space probe is traveling at a speed of 12000 m/s through deep space. Retrorockets are…

A: Given a 6.0✕104 kg space probe is traveling at a speed of 12000 m/s through deep space. Retrorockets…

Q: A toy car with a mass of 128 g moves to the right with a speed of 0.810 m/s. A small child drops a…

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Q: A 50 kN truck travelling with a speed of 50 kph hits a lamp post and is brought to rest in 0.1 secs.…

A: The weight of the truck, W=50 kN=50000 N   The mass of the truck, m=Wg=50000 N9.81 m/s2=5096.84 kg

Q: A 63kg astronaut is on a spacewalk when the tether line to the shuttle breaks. The astronaut is able…

A: Given Data:- Mass of the astronaut is M=63 Kg Mass of the oxygen tank is m=10 Kg Initial speed of…

Q: • The mass and speed of the three vehicles, A, B, and C, are shown. Rank them from greatest to least…

A: given, Here we have given three vehicles A, B and C mass mA= 800kg, speed vA= 1.0 m/smass mB=…

Q: A hungry 3.74 kg fish swimming at 2.47 m/s swallows a 1.18 kg fish that was swimming towards it at…

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Q: Chris and Steve push a huge boulder (m = 65 kg) to the top of an 18 m cliff. The boulder is moving…

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Q: A swimmer with a mass of 75 kg dives off a raft with a mass of 500 kg. If the swimmer’s speed is 4…

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Q: A 0.07 kg hockey puck slides across an icy surface and experiences a small friction force of 0.08 N…

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Q: A player bounces a 0.42-kg soccer ball off her head, changing the velocity of the ball from vi (8.2…

A: mass of ball = 0.42 kg Initial velocity (vi→) = [ 8.2 x^ - 2.3y^ ]msFinal velocity (vf→) =  5x^ +…

Q: A golf ball of mass 0.045 kgkg is hit off the tee at a speed of 32 m/sm/s . The golf club was in…

A: The change in momentam or impulse. Average force=change in momentam/time

Q: Your mass is 92.6 kg, and the sled s mass is 17.1 kg. You start at rest, and then you jump off the…

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Proper Length

The theory of special relativity explains the connection between space and time to objects that move in a straight line at a constant speed. The objects move at the speed of light. When an object approaches light speed, its mass is endless and cannot move faster than light. The most crucial postulate of Einstein's special relativity is that the laws of nature do not change in each frame of reference.