A car – truck crash can be modelled as a ‘head-on’ collision between a truck of mass 4000 kg travelling at 15 m s–1 and a stationary car of mass 1000 kg. After the collision the truck continues moving forward at 10 m s–1.   Question 103 (1998 Question 4) Calculate the speed of the car immediately after the collision.   Question 104 (1997 Question 9) Modern cars are designed to crumple progressively (crush over a period of time) when they have a head-on collision as described above. Using suitable physics, explain the purpose of the crumple section of the car. Your answer should include the ideas of force and momentum.

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Q: As shown in the figure below, two blocks (m, and m,) are each released from rest at a height of h =…

A: Given data: The mass of first block is m1 = 2.5 kg. The mass of first block is m2 = 5.15 kg.…

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: Railroad car A of mass 360.0 kg moving with a velocity VA collides and sticks with another railroad…

A: mass of car A = 360 kg initial velocity of A = VAmass of car B = 220 kg initial velocity of car B =…

Q: A car (m=1250kg) going 7.0 m/s strikes a resting car (m=900kg) the collide in an inelastic…

A: The expression for inelastic collision is m1v1+m2v2=m1+m2v Rearrange v=m1v1+m2v2m1+m2

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Q: A bullet of mass m = 8 g is fired into a block of mass M 8) edge of a table of height h = 1 m, as…

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Q: As shown in the figure below, two blocks (m, and m,) are each released from rest at a height of h =…

A: Let the velocity of 1st block before collision be denoted by vi1. At the height h, the gravitational…

Q: Question 65.16: A block with mass M = 6.35 kg is sliding in the positive x-direction at V, = 8.55…

A: Step 1It is given that

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Q: A 50.0-kg boy runs at a speed of 22.76 m/s and jumps onto a cart as shown in the figure. The cart is…

A: Because no force involve in the process so net external force on boy plus cart system remains zero.…

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A: This problem is solved by applying conservation of linear momentum.

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A: Momentum conservation along x and y axis .

Q: 7: A young man Sam who’s mass is 50 kilograms was skating in a straight line when he hits another…

A: Here net external force on system is zero. So momentum of system is zero.  Let initial speed of sam…

Q: 2.2 During the filming of a certain movie scene, the director wants a small car (mass 750 kg)…

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Q: A cart of relative mass 3m (Cart 1) moving with velocity vo = ( 15.5 m/s)î collides head-on with a…

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Q: Two cars of equal mass, one traveling east and the other traveling west, undergo a head-on…

A: From the question, it is given that- Mass of car 1 = mass of car 2, and Both the cars are travelling…

Q: A 900-kg car moving at (15î+ 0f) m/s had a head-on collision with a 2500-kg truck moving at (-10î+…

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Q: A ball #1 moving initially with a speed of 7m/s makes an elastic collision with a ball #2 of the…

A: Let the mass of both the balls be m. Let the velocity of ball 2 after collision be v2. As the…

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A: Given:  mass of first ball, m = 3 kg  initial velocity of first ball, u = 20 m/s  mass of second…

Q: You drop your iPhone from rest at a height of 2 m above a leveled cemented floor so the iPhone…

A: Draw the schematic diagram of the system.

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Q: Ferns spread spores instead of seeds, and some ferns eject the spores at surprisingly high speeds.…

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Q: A ball #1 moving initially with a speed of 7m/s makes an elastic collision with a ball #2 of the…

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Q: 12. Consider the collision in the isolated system shown below. Before collision 8 ms-1 2 ms-1 4 kg x…

A: CONCEPT:

Q: Two particles approach each other with equal and opposite speed, ?. The mass of one particle is ?,…

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Q: QUESTION 17 Questions 17 and 18 are related. A baseball pitcher throws a fast-ball (mass 50 g) to…

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Q: An 832.57kg car moving at 65.4 km/h comes to a stop in 3.2s. a. Compute for the initial momentum…

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Q: Two smooth disks A and B each have a mass of 0.5 kg. Both disks are moving with the velocities shown…

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Q: Think whether it is an elastic, inelastic, perfectly inelastic collision? Justify? a. Cart 1…

A: Elastic collision = EC   Inelastic Collision = IC  Perfectly inelastic collision = PIC  Let This are…

Q: Two billiard balls of equal mass undergo a perfectly elastic head - on collision. If the speed of…

A: In plastic perfectly elastic collision momentum and kinetic energy of system remains constant.…

Q: A railroad car of mass 23000 kg moving at initial speed v collides and couples with two coupled…

A: mass of each railroad car = 23000 kg Initial velocity of first railroad car = v Initial velocity of…

Q: hink whether it is an elastic, inelastic, perfectly inelastic collision? Justify? a. Cart 1…

A: A collision occurs when two objects come in direct contact with each other. It is the event in which…

Q: A car of mass 2500 kg and moving at 3 m/s, northeast collides with a 3800 kg car moving northwest at…

A: Given: m1 =2500 kgu1 = 3 m/sm2 = 3800 kgu2 = 2.5 m/s

Q: Ball 2 is at rest on a frictionless ground. Ball 1 which is moving initially with a velocity of 19.0…

A: Given data: Initial velocity of the ball 1 , v'=19.0 m/s Ball 1 deflects at an angle θ=35.0°

Q: A ball of mass m, = 2 kg and speed I m/s collides with another ball of mass m2 = 4 kg travelling…

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Q: Mass A moving at 4.5 m/s hits mass B, which is initially at rest. Mass A is 5.2 kg while mass B is…

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Q: vi = 8 m/s A vi = 16 m/s Objects A and B (Mass A = 6kg, Mass B = 4kg) have a head-on collision as…

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Q: A ball moving to the right at v m/s makes a head-on collision with another ball of twice the mass…

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Q: The cars are equipped with a coupling arrangement similar to the one on railroad cars. Car #1…

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Q: A car of mass m is moving forward at velocity Vo in a main collision with a car of mass 4m traveling…

A: Dear student The momentum remains conserved diring collisions. Also the coefficient of restitution…

Q: Two cars collide into each other and start to move together. If their speeds before the collision…

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Q: ball 1 (1kg) moves at 1m/s strikes stationary ball 2 (1kg). Ball 1 stops, ball 2 moves away at 1m/s.…

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Q: A 2500 kg car A moving at 20.0m/s collides and locks together with a 1500 kg car B at rest at a stop…

A: in this question  we apply conservation of momentum.

Q: You have two identical cars of mass 1,408 kg. Initially, one car is moving to the right with a speed…

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Q: As shown in the figure above, Car #1 and Car #2 are sliding across a horizontal frictionless…

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Q: car of mass m traveling at speed v crashes into the rear of a truck of mass 2m that isat rest and in…

A: To find the speed of the combined car and the truck after the collision