A car with two passengers traveling at 15 m/s collides with a tree. One of the passengers who is not wearing a seat belt strikes the windshield head first and comes to rest in 0.03 s. The area of contact between the head and the windshield is approximately 5x10^-4 m² and the mass of the head is 5.4 kg. The other passenger who is wearing his seat belt comes to rest in 0.50 s. The mass of this passenger is 75 kg. The area of the seat belt in contact with this passenger is about 0.12 m². Find the average force and the force per unit area exerted on the two passengers.​

Q: The figure below shows four particles at the comers of a rectangle, connected by rods of negligible…

A: (a) From the figure, the distance of the masses from the x axis is 3.0m. then the moment of inertia…

Q: A 42kg object is moving at +13.4m/s. After a collision, the object moved at +7.5m/s. a. Momentum…

A:

Q: In a perfectly ELASTIC collision between two perfectly rigid objects the momentum of the system is…

A:

Q: An object of mass 12 kg is initially moving east at 4.0 m/s. Two seconds later, the object is moving…

A: Given, Mass of the object, m1= 12 kg, initial speed, u= 4 m/s due east, and final velocity, v= 3 m/s…

Q: If the pole-vaulter were to land on concrete rather than on a cushion, the impulse that stops the…

A: Given: The impulse of stopping the fall of the pole-vaulter in the concrete.

Q: An object of mass 2.91 kg, moving with an initial velocity of 5.02 m/s, collides with and sticks to…

A: Given data:  Mass of object 1 (m1) = 2.91 kg Initial velocity of object 1 (v1) = 5.02 m/s Mass of…

Q: On a very muddy football field, a 110 kg linebacker tackles an 85 kg halfback. Immediately before…

A: M = 110 kg  m = 85 kg  U = 8.8 m/s north  u = 7.2 m/s east

Q: A student throws a 120 g snowball at 7.5 m/s at the side of the schoolhouse, where it hits and…

A:

Q: Two masses mA=62kg and mB=32kg collides with each other. The velocities of mA before and after the…

A: Given: vA=(7 i+62 j) m/s v'A=(25 i+89 j) m/s vCM=(2 i+17 j) The Center of mass of the system for…

Q: An object experiences an impulse during a collision. What does this impulse equal? O The impulse is…

A: When the object collides, it experiences Impulse during its' collision. Impulse is Force acting for…

Q: Two steel balls, one having a mass of 100 g and a heavier ball, having a mass of 200 g hang…

A:

Q: During hockey practice, two pucks are sliding across the ice in the same direction. At one instant,…

A: mass of  first puck = m1= 0.18 kg mass of  second puck = m2= 0.14 kg initial velocity of puck 1 =…

Q: You’ve been given the challenge of balancing a uniform, rigid meter-stick with mass M = 110 g on a…

A: Given:Mass of a meter stick = 110 gmLength of meter stick = 1 m = 100 cmMass of one coin = 2.9…

Q: On a very muddy football field, a 120 kg linebacker tackles an 80 kg halfback. Immediately before…

A:

Q: A car with mass mc = 1221 kg is traveling west through an intersection at a magnitude of velocity of…

A:

Q: An object with a mass of 5.00 g is moving to the right at 14.0 cm/s when it is overtaken by an…

A: Given data: Mass of the object m = 5.00 g Initial speed u1=14.0cm/s Mass of the object 2 m2=26.0g…

Q: A 0.22LR caliber bullet has a mass of 31 grains (2.00 g) and a muzzle velocity of 1750 ft/s (530…

A:

Q: Column B Column A Mutual action between two objects where each object exerts a force on the other…

A: When two objects interact with each other, they will exert a force on one another, hence interaction…

Q: Two small steel balls A and B have mass 0.6 kg and 0.2 kg respectively. They are moving towards each…

A:

Q: Totoo? Which of the following statements about elastic and inelastic collisions is TRUE? A. The…

A:

Q: Which of the following statements are true about impulse? Impulse is a force. Impulse is a vector…

A: Write the expression for the impulse.

Q: The mass of a particle is 2 kg and its velocity is given by V1 = 2i-10tj m/s, with time in t and s.…

A: The velocity of the center of mass of a given system of particles is given by- vCM=m1v1+m2v2m1+m2…

Q: A 1.0 kg sphere moves to the right at 3.0 m/s and collided head on with a 3kg sphere moving at 1.0…

A:

Q: 1. An average force of 100 N acts for a time interval of 0.02 seconds on a golf ball that is…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Solve this attachment.

A: A collision is elastic if the sum of final kinetic energies is equal to the sum of initial kinetic…

Q: An object of mass 3.50 kg moving with a velocity of 2.60 m/s collides with another object of mass…

A: Given Data: The mass of the first object is, m1=3.50 kg The mass of the second object is, m2=2.20 kg…

Q: In _____ ______ , kinetic energy is conserved. a) an elastic collision b) an inelastic collision…

A: Since you have asked multiple questions, we will answer the first question for you according to the…

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

A: Since initially, both the skaters are at rest. Therefore their initial velocities= v= 0 m/s Since…

Q: Four particles are arranged in a square with sides of 1.0 m. The bottom particles each have a mass…

A:

Q: Which of the following statements are true about collisions? Two colliding objects will exert equal…

A: 1. Ture F is force, P is momentum, t is time, M and m are masses of two objects and V and v are the…

Q: Solve the problems about momentum, impulse, the center of mass and conservation of momentum. A 450g…

A:

Q: A boat of mass 1,300 kg that is moving at a speed of 6 m/s and a speedboat of mass 850 kg that is…

A: The given data are: m1=1300 kgv1=6 m/sm2=850 kgv2=25 m/s Here, m1 denotes the bloat's mass, v1…

Q: onsider a volume of fluid. The net force acting on it is negligible. What is true of the momentum of…

A: Given: The net force acting on the fluid is negligible

Q: A ball of mass 100 g moving with a speed of 2.5 m/s collides with another ball of 100 g moving with…

A: The expression for the total momentum of the system is,

Q: Which one of the following is true concerning momentum?     The momentum of an object is always…

A: Here,  "Momentum and impulse are measured in the same unit" is the correct option.

Q: A 2210 kg car experiences an impulse of 20,000.0 N · s during a collision with a wall. If the…

A:

Q: The mass of the wire is 47 g and the length of the wire is 2.4 m. Determine the x-coordinate for the…

A: If mass of the wire distributed uniformly over its length then center of mass will be at its mid…

Q: The drawing shows a sulfur dioxide molecule, S02. It consists of two oxygen atoms and a sulfur atom.…

A: The center of mass is defined as the point in the body where the whole of its mass is said to be…

Q: A 1 500 kg car travelling at 25 m/s collides with a 2 500 kg van stopped at a traffic light. As a…

A:

Q: You’ve been given the challenge of balancing a uniform, rigid meter-stick with mass M = 110 g on a…

A: Taking moment about the pivot,

Q: Compare the momentum and the kinetic energy of an automobile weighing 2000 1b and moving with a…

A:

Q: In an elastic collision, an object with momentum 25kg•m/s collided with another that has momentum…

A: In an isolated system, the momentum of that system is conserved.

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

A:

Q: A rod 2 meters long has a linear density of p(x) = 8 - 3x. How far, in meters, is the center of mass…

A: Given data ρx=8-3x

Q: percentage of the gas propellant was ejected from the completely filled propulsion unit

A: The astronaut begins the space walk from rest. Apply principle of conservation of momentum…