A train with mass of 2000 kg coasts on a frictionless track with a speed of 50 m/ s . How large a constant retarding force is required to stop it in a distance of 100 m?

Q: A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is…

A: According to the Newton’s second law, F=maa=Fm=4.3×105 N3.56×105 kg=1.208 m/s2

Q: A girl of mass m1=60.0 kilograms springs from a trampoline with an initial upward velocity of…

A: In the given problem, Mass of girl m1 = 60kg Initial upward velocity (u) = 8m/s Height when she…

Q: Mr. M is driving his truck, which has a mass of 2200kg, at a speed of 125km/h on the 401. He notices…

A: Mass of the truck is m = 2200 kg Initial speed of the truck is u = 125 km/h Tapping distance is S =…

Q: How large a force is required to accelerate a 1600 kg car from rest to a speed of 30 m/s in a…

A: Mass of car (m) = 1600 kg  Initial velocity (u) = 0 m/s  Final velocity (v) = 30 m/s  Distance moved…

Q: A brick of mass 1.00 kg slides down an icy roof inclined at 30.0° with respect to the horizontal.…

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Q: In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and…

A: Given:  initial velocity, u = 0 m/s  final velocity, v = 45 m/s  time, t = 7 s  mass, m = 5.5 x 103…

Q: A 78 kg bungee jumper is initially standing at rest on a bridge. After falling a distance 15 m, then…

A: Given: mass of bungee jumper, m = 78 kg  distance fallen, S = 15 m

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: For a ballistic study, a 1.9 g mass bullet is fire into softwood. The bullet strikes the wood…

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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: 1,200 kg car traveling at a speed of 43 m/s skids to a halt on wet concrete where µk = 0.60. How…

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Q: When a mass M experiences a velocity change of v in a time of t, it experiences a force of F.…

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Q: Two iceboats (one of mass m, one of mass 2m) hold a race on a frictionless, horizontal, frozen lake.…

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Q: A computer on the table is at rest. This means that   A. Computer has no energy   B. No net…

A: Balanced forces are the force that acts on the object in an equal magnitude and opposite direction.…

Q: teve Rogers jumps vertically on flat floor and leaves the surface with a velocity of 8.5 m/s upward.…

A: The third equation of motion is  v2 = u2 + 2 a s where, u is the initial velocity, v is the final…

Q: Find the velocity at which a super hero with a mass of 76.0 kg must fly into a train with a mass of…

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Q: How much force is required to bring a car of mass 1352 kg, initially traveling at 15.1 m/s, to rest…

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Q: Calculate the final speed (in m/s) of a 104 kg rugby player who is initially running at 7.75 m/s but…

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Q: How much force is required to bring a car of mass 1451 kg, initially traveling at 16.7 m/s, to rest…

A: Given  Mass of car  m = 1451 kg  Initial speed of car u = 16.7 m/s  Final speed of car  v = 0 m/s…

Q: A bullet of mass 20g traveling at 16m/s penetrates a sand bag and is brought to rest in 0.05s . Find…

A: A. Depth of penetration  is  0.4m B. Average  retarding  force is 6.4

Q: Your mass is 77.3 kg, and the sled s mass is 17.7 kg. You start at rest, and then you jump off the…

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Q: A car with a mass of 1850kg is traveling east with a speed of 8.5m/s. It collides head-on with a car…

A: To determine,The velocity (magnitude and direction) of the two cars after the collision.given,mass…

Q: A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is…

A: case 1the deceleration is given by

Q: A ball having mass 6.5kg and velocity 6.3m/s travels due east. An impulsive force at point O, makes…

A: Mass of ball (m)=6.5 kg Initial velocity of ball (u→)=6.3 i^ m/s Final velocity of ball (v→)=8.1 j^…

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: skater skater traveling at a high speed needs a certain amount of force to stop him more stopping…

A: We know the expression for force is  F=ma If the mass will be more the the amount of force needed…

Q: A 69.8 kg bungee jumper is initially standing at rest on a bridge. After falling a distance 13.2 m,…

A: Given, a mass m = 69.8 kg bungee jumper is initially standing at rest on a bridge (taking downward…

Q: When a mass M experiences a velocity change of v in a time of t, it experiences a force of F.…

A:

Q: Given a collision in which car #1 of mass 5,000 kg collided with car #2 of mass 2,500kg . If the…

A: Given data: Mass of the car 1 is, m1 = 5000 kg Mass of the car 2 is, m2 = 2500 kg The magnitude of…

Q: The IKAROS spacecraft, launched in 2010, was designed to test the feasibility of solar sails for…

A: Given that, Mass of the spacecraft, m=290 kg Force, F=1.12mN=1.12×10-3N Duration, t=6 months=6×30…

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…

A: Givenm1 = 76.3 kgm2 = 10.8 kgu1 = 0 m/su2 = 3.07 m/s

Q: A NASA probe traveling through interplanetary space has a mass of 81 kg and is traveling at a speed…

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Q: A 75 kg fisherman in a 135 kg boat throws a pile of 0.80 kg rocks towards the shore. If he throws…

A: mass of pile of rocks = 0.8 kg mass of fisherman = 75 kg mass of boat = 135 kg average force = 5 N…

Q: A 3 kg particle starts from rest and moves a distance of 4 m in 2 sec under the action of a single…

A: If a mass ‘m’ has acceleration ‘a’ then from Newton's 2nd law of motion, the force on the body is…

Q: Cart A and cart B, of masses m and 2m which is in motion with velocities 2v and v respectively.…

A: Given: The mass of cart A is m. The mass of cart B is 2m. The initial velocity of cart A is 2v. The…

Q: A lump of clay of mass 0.31 kg is dropped from a height of 8.1 m. The clay comes to a full stop…

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Q: A tennis ball is flying east towards the wall with a speed of 40.3 m/s. After bounced against the…

A: Ball is moving at a speed of (Vi) = 40.3m/s towards east. After bounce it's speed is (Vf) = -28.2…

Q: A bowling ball weighing 70.0 N initially moves at a speed of 5.00 m/s. How long must a force of 45.0…

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Q: When a mass M experiences a velocity change of v in a time of t, it experiences a force of F.…

A: From Newton’s second law of Motion:

Q: When a boxer gets hit on the face by his or her opponent, he or she should move back his or her head…

A: When a boxer gets hit on the face by his or her opponent he or she should move his or her head back…

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 4768-kg roller coaster train full of riders approaches the loading dock at a speed of 17.1 m/s. It…

A: Consider the retarding force be F, that is, applied against the motion of the roller coaster train.…

Q: Object A has mass of m and object B has mass of 3m, if the two objects have the same kinetic energy,…

A:

Q: A lump of clay of mass 0.28 kg is dropped from a height of 10.8 m. The clay comes to a full stop…

A: mass of lump of clay (m) = 0.28 kg initial height (h) = 10.8 mInitial velocity (u) = 0 ms