Q: A car hurtles off a cliff and crashes on the canyon floor below. Identify the system in which the…

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Q: A 310-g paperback book rests on a 1.2-kg textbook. A force is ap- plied to the textbook, and the two…

A: Given: Mass of paperback is mp=310 g=0.31 kg Mass of textbook mt is 1.2 kg. Velocity of the books is…

Q: A 1000 kg car is moving at 10 m/s collides to a 1200-kg car which is moving from the opposite…

A: Let the direction in which the 1000 kg car moves initially be the positive x-direction.   Apply…

Q: 5-kg fish swimming at 2 m/s to the right swallows an absent-minded 1-kg fish swimming toward it at…

A: Given : mass of first fish, m1 = 5 kg mass of second fish, m2 =1 kg Initial velocity of first fish…

Q: Q17. A 70-kg hockey player skating east on an ice rink is hit by a 0.1-kg puck moving west. The puck…

A: Since it's not stated in the problem that the player is accelerating to the east, then the Net force…

Q: A 90 kg halfback runs north and is tackled by a 120 kg opponent running south at 4 m/s. The…

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Q: An open truck of a freight service train has a mass of 40,000 kg and is moving horizontally at 32.00…

A: Given Information:Mass of truck m1 = 40,000 kgInitial velocity V1 = 32 m/sFinal mass of the truck m2…

Q: Two friends are standing on opposite ends of a canoe. The canoe is initially at rest with respect to…

A: Answer: B. stationary

Q: Mary is trying to stop a 5 kg bowling ball that is rolling toward her. Its horizontal velocity is…

A: According to work energy theorem, the work done to stop the ball should be equal to the kinetic…

Q: Allen toss a 0.15-kg basketball down onto the floor. The ball's velocity just before impact is 6.5…

A: Average force  Favg = ∆P/∆t  = m∆V/∆t

Q: You throw a ball with a mass of 0.40 kg against a brick wall. It hits the wall moving horizontally…

A: Mass of the ball m=0.40 kg Before collision the velocity u=30 m/s After collision the velocity v=-20…

Q: Tennis racquets have “sweet spots.” If the ball hits a sweet spot then the player's arm is not…

A: The expression of impulse is given by, ∆p=F×∆t Here, F is the net force exerted on the racket and ∆t…

Q: Alex (mass = 96.9 kg) is standing at rest on one end of a floating log (mass = 213 <g) that is also…

A: Using conservation of momentum m1u1+m2u2=m1v1+m2v2

Q: Bernadetta has a mass of 58 kg. She is riding her skateboard east at 6 m/s. She collides with…

A: given: mB=58 kguB =6 m/s ( towards East)us= 3 m/s (towards West)V = 0.3 m/s (towards west)

Q: Explain why a rifle recoils when a bullet is shot

A: When a bullet is fired from a gun, the gun exerts a force in the forward direction. This force is…

Q: Starting from rest, a 2-kg body acquires a speed of 8 m/s in 2 seconds. The net force acting on the…

A: The expression for the acceleration is given by, a=v-ut Use the given values, a=8 m/s-02 s=4 m/s2

Q: the center of mass of the system

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Q: A soccer ball (mass 450.0 g) is moving at 15.0 m/s [East] when it is kicked by the goalie. The…

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Q: A woman is 50 kg, and a man is 75 kg push off (from rest) against each other on smooth level ice.…

A: mass of woman, m = 50kg  mass of man, M = 75 kg  velocity of woman, vf1 = 2.25 m/s

Q: A ball of 1-kg makes an elastic head-on collision with another ball of unknown mass that is…

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Q: Three blocks are being pulled to the right by a 100 N force. Find the tensions in each ing…

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Q: A 2210 kg car traveling at 10.1 m/s collides with a 2680 kg car that is initally at rest at a…

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Q: Two balls are set to collide on a single track. Ball1 has a mass of 3.84-kg and a velocity of…

A: m1= 3.84 kg ; V1= 3.27 m/s m2= 2.67 kg ; V2= 1.27 m/s V1'= -1.12 m/s ; V2'= ?   Elastic collision…

Q: An NHL hockey puck weighs about 0.16 kg. It is shot from one side of the rink to the other side 60 m…

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Q: Before After A student is shopping for study snacks at a local grocery store. Somebody broke a very…

A: Given:- Mass of the student is ms=49.7 kg Mass of the clerk is mc=61.5 kg Initial speed of the…

Q: Two dynamics carts (a type of cart used in physics experiments) undergo a head on, elastic…

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Q: A 22.9-g bullet traveling 289 m/s in a vertical direction buries itself in a 4.4-kg block of wood at…

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Q: Car A moving along a horizontal road collides at an intersection with car B moving at 16 m/s at 32'…

A: The given data are listed below with appropriate variables. Here, uB denotes the velocity of a car…

Q: John’s 200-kg bumper car is traveling east at 10 m/s when it collides head-on with Bob’s 180-kg…

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Q: Two hockey players collide at center ice and together slide away from where the hit. Because they…

A: inelastic      ii=machanical energy is not conserved

Q: Rex (m=86 kg) and Tex (92 kg) board the bumper cars at the local carnival. Rex is moving at a full…

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Q: A block with mass equal to 12000 g solid across a frictionless surface at 37.0 m/s and hit another…

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Q: 5. An ice-hockey player weighing 900 N is skating with a velocity of 8.0 m/s when be slams into a…

A: Given data The weight of the first ice hockey player is Fw1=900 N The velocity of the first ice…

Q: A 1500-kg car traveling at 90 m/s toward the east suddenly collides with a 3000-kg car traveling at…

A: Velocity of 1500 kg car before collision, u1 = 90 m/s towards east Velocity of 3000 kg car before…

Q: A 4-kg ball traveling westward at 25 m/s hits a 15-kg ball at rest. The 4-kg ball bounces east at…

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Q: A 1200 kg car traveling initially with a speed of 25 m/s in an easterly direction crashes into a…

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Q: A 2.70-kg ball is shot into a 0.425-kg box that is at rest on a frictionless, horizontal table (see…

A: To solve the question, we need to find the speed of the box and ball together after the collision.…

Q: A 1460-kg car is moving westward with a speed of 20.1 m/s, and a 2986-kg truck is traveling east…

A: 1460-kg car is moving westward with a speed of 20.1 m/s, and a 2986-kg truck is traveling east with…

Q: A ball weighing 20 kg rests on two boards arranged as a 45°- through, with one board vertical. What…

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Q: A 2,300-kg car moving east at 10.0 m/s collides with a 3,000-kg car moving north. The cars stick…

A: Using law of conservation of momentum, the expression for find speed of the 3000 kg car before…

Q: A 16-lb bowling ball is at the origin, while a 12-lb ball is at (5,0)m and a 14-lb ball is at…

A: A) Center of mass of x-coordinate is xcm=m1x1+m2x2+m3x3m1+m2+m3=16 lb×0+12 lb×5 m+14 lb×7 m16 lb+12…

Q: Carts A and B stick together whenever they collide. The mass of A is twice that of B. How could you…

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Q: Car A with a mass of 2000 kg moves at 72 km/hr and car B of mass 1250 kg travels at 60 km/hr. Both…

A: Given:-  m1  = 2000 kg  v1 = 72 km/h = 20 m/s  and  m2 = 1250 kg  v2 = 60 km/h = 16.67 m/s  Find;-…