Two ice skaters standing still on a frozen pond push off against each other. The first skater has a mass of 75 kg and slides backwards at 1.3 m/s. If the second skater slides backwards at 2.5 m/s, what is her mass?

Q: A small car with mass of 71.25 kg moves at 52.5 m/s and collides head-on to a 285 kg truck moving at…

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Q: wo automobiles, each of mass 500 kg, are moving at the same speed, 10 m/s, when they collide and…

A: Given:mass of each m1=m2 = 500 Kg speed u1=u2 = 10 m/s

Q: A boy of mass 43.2 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.2 m/s.…

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Q: Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are…

A: Given data:  Two train cars coupled together after collision  Mass of first car (m1) = 150000 kg…

Q: 4. Two balls with masses of 1.70 kg and 5.60 kg travel toward each other at speeds of 13.0 m/s and…

A: From the conservation of momentum, the recoil velocity of the second ball is,

Q: Player A has a mass of 128 kg and a velocity of 3.5 m/s. Player B has a mass of 112 kg and a veloci

A: Mass of player A,MA=128kgMass of player B,MB=112kginitial velocity of player A,UA=3.5m/s initial…

Q: In the railroad freight yard, an empty freight car of mass m rolls along a straight level track at…

A: (a) The initial speed of the empty car is, u1=1.2 m/s The initial speed of the loaded car is, u2=0…

Q: A 1.45 kg car (A) traveling 0.8 m/s strikes a second car (B) with a mass of 0.59 kg at rest. After…

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Q: A 95 kg fullback moving south with a speed of 5.0 m/s has a perfectly inelastic collision with a…

A: mass of fullback = 95 kg Initial velocity of fullback = 5 ms due south mass of opponent = 90 kg…

Q: Batman (mass = 98.7 kg) jumps straight down from a bridge into a boat (mass = 422 kg) in which a…

A: Mass of the boat,

Q: A fullback with a mass of 100 kg and a velocity of 4 m/s due west collides head-on with a defensive…

A: Momentum of an object p (in kg m/s) is given as…

Q: A boy on a 2.1 kg skateboard initially at rest tosses a(n) 8.5 kg jug of water in the forward…

A: Consider the skateboard and the boy to be a single system. From the momentum conservation, Here, m,…

Q: Two rocks collide in outer space. Before the collision, one rock had mass 18 kg and velocity m/s.…

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Q: 10,405-kg railroad car traveling at a speed of 30 m/s strikes an identical car at rest. If the cars…

A: Dear student The momentum remains conserved during collision. The momentum is given as : P = mv

Q: 3) Two football players are running towards each other the 115 KG linebacker traveling in the…

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Q: While playing soccer, Ronaldinho (45 kg) and his opponent Messih (60 kg) collide with one another…

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Q: A 9.5 kg bowling ball races down the lane at 15.0 m/s before striking a bowling pin (at rest) with a…

A: Given data: Mass of bowling ball (m1) = 9.5 kg Initial velocity of bowling ball (u1) = 15.0 m/s Mass…

Q: A 4.0 kg mess kit sliding on a frictionless surface explodes into two 2.0 kg parts, one moving at…

A: Given: The mass of the mess is 4  kg. The mass of each fragment is 2 kg. The final velocity of the…

Q: During a football game, a receiver has just caught a pass and is standing still. Before he can move,…

A: Using the expression for the conservation of momentum,

Q: A 3,000-kg railway car is traveling on a level track with a velocity of 8.0 m/s to the right when it…

A:

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

A:

Q: A 75 kg man rides on a 39 kg cart moving at a velocity of 2.3 m/s. He jumps off with zero horizontal…

A: Given,

Q: 0.2 kg ball is traveling in the positive direction at 2 m/sec and collides with a stationary ball…

A:

Q: Two ice skaters stand facing each other at rest on a frozen pond. They push off against one another…

A: Two skaters initially at rest facing each other push off against each other. The speeds of both…

Q: 10.303-kg railroad car travelling at a speed of 30m/s strikes an identical car at rest. If the cars…

A: mass of rail road car = m1= 10.303kg its initial speed = V1i= 30 m/s mass of second car = m2= 10.303…

Q: A 62.0 kg curler travelling at + 1.72 m/s runs into a 78.1 kg curler and the 62.0 kg curler comes to…

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Q: 2. A 40 kg girl skates at 3.5 m/s on ice toward her 65 kg friend who is standing still, with open…

A: Mass of girl = m1 = 40 kg Mass of friend = m2 = 65 kg Initial speed of girl = v1 = 3.5 m/s Initial…

Q: Question 3 A car with a mass of 650 kg travels at a velocity of 60 km.h and crashes into the back of…

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Q: 4. During a football game, a receiver has just caught a pass and is standing still. Before he can…

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Q: Dr. Knotts's kids are chasing each other through the yard. Arlo is in the lead and Greyson is…

A: The total momentum of the system must be conserved. The momentum conservation gives,…

Q: 2) Two football players are running towards each other the 115 KG linebacker traveling in the…

A: Given :       mass of linebacker, m1 = 115 kg      mass of running back, m2 = 95 kg      Initial…

Q: A 2-kg object moving at a velocity of 2.3 m/s collides with a second body of mass 7 kg moving in the…

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Q: A 2.00-kg object traveling east at 20.0 m/s collides with a 3.00-kg object traveling west at 10.0…

A: We first equate the linear momentum before and after the collision. ∑pi = ∑pf The momentum of an…

Q: When a car of mass 2.0 x 103 kg moving at 9.0 m/s collides head on with a second car having a mass…

A:

Q: A 3,000-kg railway car is traveling on a level track with a velocity of 8.0 m/s to the right when it…

A: Given : m1 = 3000 kg v1 = 8 m/s m2 = 5000 kg v2 = -4 m/s (negative because it is moving towards…

Q: Two football players with masses of 60 kg and 50 kg run directly toward each other. The 60 kg…

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Q: Two football players collide head-on in midair while chasing a pass. The first player has a 100.5 kg…

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Q: A 40.0kg bomb is moving at 10.0 m/s in the negative x-direction when it explodes into 3 pieces.…

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Q: A 4.8 kg mess kit sliding on a frictionless surface explodes into two 2.4 kg parts, one moving at…

A: Solution:- Given:- M=4.8 kg Linear momentum for two 2.4 kg parts (m=2.4 kg) P1= mV1 j ​P2=mV2(cosθ i…

Q: 2. A pitcher claims he can throw a baseball with as much momentum as a 3.00-g bullet moving with a…

A: Given data: The mass of the bullet is, m=3 g×1 kg1000 g=0.003 kg. The speed of the bullet is,…

Q: Two vehicles approach a right-angle intersection and then suddenly collide. After the collision,…

A: Given, Two vehicles approach a right-angle intersection and then suddenly collide Their mass ratios…

Q: 2. You (74 kg mass) skate on ice at 3.6 m/s to greet your friend (58 kg mass), who is standing…

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Q: Two ice skaters are skating directly towards each other. Skater A has a mass of 50 kg and a velocity…

A: mass of skater A (mA)=50 kg velocity of skater A (vA )=12 m/s (to the right) mass of skater B…

Q: A 1 kg and a 9 kg cart can move on an air-track without friction. Initially the 1 kg cart moves with…

A: Given: The masses of the carts are (m1), (m2) 1 Kg, and 9 Kg respectively. The initial velocity (u1)…

Q: Problem 12: Two balls of clay, with masses M =0.26 kg and M2 = 0.29 kg, are thrown at each other and…

A: Write the given values. M1=0.26 kgM2=0.29 kgv1=3.05i^ m/sv2=1.75j^ m/s

Q: Two ice skaters stand facing each other at rest on a frozen pond. They push off against one another…

A:

Q: A0S kg ball travelling at 6.0 ms collides "head on" with a 1.00 kg ball moving in the opposite…

A:

Q: In a football game, a receiver is standing still, having just caught a pass. Before he can move, a…

A: