(Recall from chemistry that the isotopic number of an element is related to its mass.) event: initial final mass/object/velocity mass/object/velocity 1 0 + 0 + b. Complete the momentum conservation diagram for the radioactive decay of radium-226. When radium-226 decays, it becomes radon-222 by ejecting an alpha particle. During alpha decay, an atom ejects two protons and two neutrons (an alpha particle, which is also a helium nucleus). event: initial final mass/object/velocity mass/object/velocity 0 0 b. Complete the momentum conservation diagram for the accident. On an icy road, a 5000 kg truck rear-ends a 1200 kg car that had been traveling at 13 m/s, causing the truck to slow from 14 m/s to 12 m/s and the car to speed up. event: initial final mass/object/velocity mass/object/velocity 0 + 0 b. Complete a conservation of momentum diagram for firing one of these cannons. When a 150 kg cannon and cart recoils at 1.5 m/s, at what velocity would a 10 kg cannonball leave the cannon? a. Old cannons were built on wheeled carts, both to facilitate moving the cannon and to allow the cannon to recoil when fired.
Suppose that the golf ball was in contact with the floor for 4.0 x 10-4s.Transcribed image text: Name Date Pd Impulsive Force Model Worksheet 4: Conservation of Momentum II 1. What will be the change in momentum, (p) from the instant before the ball collides with the floor until the instant after it rebounds from the floor? (Illustrate with a vector diagram.)Į. What will the instantaneous momentum of the golf ball be immediately before it strikes the floor? d. Determine the time required for the ball to reach the floor. Construct a motion map for the golf ball from the time it is dropped until it reaches its highest point of rebound. Perfectly elastic collision with the floor.Ī. A golf ball that weighs 0.45 N is dropped from a height of 1.0 m. For how much time must the engine burn during the launch in order to reach this speed?ĥ. A rocket, weighing 4.36 x 104N, has an engine that provides an upward force of 1.2 x 105N. Modeling Instruction - AMTA 2013 2 U9 Momentum - ws 2 v3.1Ĥ. How large is the force the ball exerts on the bat? Explain. What is the final velocity of the ball? d. When the batter hits the ball, a net force of 1150 N, opposite to the direction of the ball's initial motion, acts on the ball for 9.0 x 10-3 s during the hit. If the initial speed of the baseball is v = 0.0 m/s, what will its speed be when it leaves the pitcher's hand? c. What is the magnitude of the change in momentum of the ball?ī. While being thrown, a net force of 132 N acts on a baseball (mass = 140 g) for a period of 4.5 x 10-2 sec. The following questions refer to the motion of a baseball.Ī. Justify your answer.ī) Find the value of the ratio of kinetic energy C to kinetic energy D. Object C has twice the velocity of object D.Ī) Find the value of the ratio of momentum C to momentum D. Two other objects, C and D, have identical masses. Justify your answer.ī) Find the value of the ratio of kinetic energy A to kinetic energy B.
Object A has 3 times the mass of object B.Ī) Find the value of the ratio of momentum A to momentum B. Two objects, A & B, have identical velocities. Impulsive Force Model Worksheet 2: Impulsive Forces and Momentumġ. Modeling Instruction - AMTA 2013 1 U9 Momentum - ws 2 v3.1
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