A woman holding a large rock stands on a frictionless, horizontal sheet of ice. She throws the rock with speed v0 at an angle a above the horizontal. Consider the system consisting of the woman plus the rock. Is the momentum of the system conserved? Why or why not? Is any component of the momentum of the system conserved? Again, why or why not?

Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.2 m/s and a mass of 0.46 kg. Cart 2 has a mass of 0.67 kg. (a) If the total momentum of the system is to be zero, what is the initial speed (in m/s) of Cart 2? (Enter a number.) m/s (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is zero? O Yes O No (c) Determine the system's kinetic energy (in J) in order to substantiate your answer to part (b). (Enter a number.)

A car and a small truck traveling at right angles to one another with the same speed collide and stick together. The truck's mass is roughly twice the car's mass. Sketch the direction of their momentum vector immediately after the collision. Explain your result.

You drop a 0.15-kg ball to the floor from a height of 2.7 m, and it bounces to a height of 1.2 m.  What is the magnitude of the change in its momentum as a result of the bounce? Express your answer with the appropriate units. |Δpy| =

As shown in the figure below, cars #1 and #2 are travelling across a horizontal surface. The cars are equipped with a coupling arrangement similar to the one on railroad cars. Car #1 overtakes car #2 and they have a totally inelastic collision and become coupled together. You know the mass of each car; m, = 14.5 kg and m, = 45.0 kg. In addition, you are provided with the following graph, which shows the momentum of car #1 before, during, and after the collision. Determine the velocity of car #2 before the collision. You may ignore friction and treat the wheels of the cars as massless. 922 You have been given the mass of car #1 and the graph provides you with the momentum of the car after the collision. See if you can use this information to determine the velocity of car #1 after the collision. Knowing the velocity of car #1 after the collision and also knowing that the two cars are coupled together, see if you can determine the velocity and hence momentum of car #2 after the collision.…

Quesitos: The drawing shows a bullet passing through two blocks that rest on a horizontal, frictionless surface. Rule out air resistance. The bullet completely passes through the first block and is buried in the second block. Notice that after the collision, both blocks move. Can the Conservation Principle be applied from Linear Momentum to this three-body system? Justify your answer (Ignore any loss of mass from the first block). Problem: A 4.00-g bullet moves horizontally with velocity of + 355m / s. The mass of the first block is 1150 g, and its velocity after the bullet passes through it it is +0.550 m / s. The mass of the second block is 1530 g. (a) Obtain the speed of the bullet after passing through the first block, (b) obtain the velocity of the second block after the bullet is buried in it

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ent G An impulse of 12.2 kg*m/s is deli x 361242/take 10 p Question 1 A warehouse employee is pushing a 30.0 kg desk across a floor at a constant speed of 0.50 m/s. What is the magnitude of the momentum of the desk? O 0.017 kg*m/s O 15.0 kg*m/s O 60 kg*m/s O 30.5 kg*m/s Question 2 10 pts Norton Antivirus: 19.99/YE Your special price is valid to Google Chrome istudy-helper.co The momentum of a 12kg dog racing to greet its owner has a Norton What is the dog's speed? Install O a Cop

Two people, each with a mass of 85.00 kg, are paddling their canoe downstream with a speed of 1.520 m/s relative to the water, in a river that flows with a speed of 2.790 m/s with respect to the shore. What is the magnitude of the total momentum of the people, in kg⋅m/s, with respect to the shore?

Two objects of equal mass collide. Object A is initially moving with a velocity of 15 m/s in the +x-direction, and object B is initially at rest. After the collision, object A is at rest. There are no external forces acting on the system of two masses. (a) Use momentum conservation to deduce the velocity of object B after the collision. (b) Is this collision elastic? Justify your answer.