Is (1) Explain why momentum is always conserved in a collision. kinetic energy always conserved? Explain with an example needed. if to loold.sv

Consider a frictionless track as shown in the figure below. A block of mass m, = 5.55 kg is released from O. It makes a head-on elastic collision at ® with a block of mass m, = 19.0 kg that is initially at rest. Calculate the maximum height to which m, rises after the collision. A 5.00 m

A curiosidade child stands on the top of a 670 m Skyscraper  and Drops a coin from the top of the building. How fast is the coin moving when it hits the ground. Solve using conservation of momentum

Consider the collision shown below. Is this collision elastic or inelastic? Show explicitly.

Please note that question is asking about two possible velocities after the collision. The collision is elastic but there is extra spring potential energy stored in the second cart. What role does that play? According to Key, the correct options are C and D. Intuitively I also picked C and D however I need a physical explanation how the answer is C and D.

Is the following statement true? If not, why? Within the system, both the momentum and kinetic energy are conserved during each of the collisions ( spring-loaded elastic, hoop spring, and putty collisions).

A 5.3 kg bowling ball is rolled down an alley at 4.2 m/s. A) what impulse is needed to bring it to a stop? b) if it takes 2.3 seconds to accomplish this, what is the applied force (average) draw a picture round significant figures show work

If a falling ball were to make a perfectly elastic collision withthe floor, would it rebound to its original height? Explain.

Questions Change in momentum of cach by the other. Work done on cach ollowing questions have a single (A) Ap=-Ap (B) Ap, = APu (C) Ap, -Apu (D) Ap, AP W, in general W W, in general Wn W-Wi W, W fer to the following material. In a one-dimensional collision, two objects with masses M and m collide head-on with no external forces exerted. Both the mass of M and its speed are greater than those of m, that is M> m and the speed M>V The two objects bounce off each other when they collide. Which of the following bar graphs might correctly represent this collision? 6. m/s of mass of 4.0 kg is initially moving city as shown. It then experiences a hanges its velocity to i, as shown. The ange in momentum has a magnitude of ne following. A. Pafinal B. 8.0 kg m/s D. 16 kg m/s ld he the change in kinetic energy of the m's Pninal B. 18] C. 32N D. 64 J Puial 1.00 1.50 2.00 2.50 3.00 3.s0 4.00 2.01 3.0 4.02 5.00 4.02 2.99 2.00 above presents measurements of the net red on a 0.50 kg object moving along…

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