A 1.20-kg wooden block rests on a table over a large hole as in the figure below. A 5.25-g bullet with an initial velocity v, is fired upward into the bottom of the block and rem the collision. The block and bullet rise to a maximum height of 18.0 cm. M (a) Describe how you would find the initial velocity of the bullet using ideas you have learned in this chapter. (b) Calculate the initial velocity of the bullet from the information provided. (Let up be the positive direction. Indicate the direction with the sign of your answer.) m/s

A 1.20-kg wooden block rests on a table over a large hole as in the figure below. A 5.25-g bullet with an initial velocity v, is fired upward into the bottom of the block and rem the collision. The block and bullet rise to a maximum height of 18.0 cm. M (a) Describe how you would find the initial velocity of the bullet using ideas you have learned in this chapter. (b) Calculate the initial velocity of the bullet from the information provided. (Let up be the positive direction. Indicate the direction with the sign of your answer.) m/s

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A 70.0 kg ice hockey goalie, originally at rest, has a 0.280 kg hockey puck slapped at him at a velocity of 45.5 m/s. Suppose the goalie and the puck have an elastic collision, and the puck is reflected back in the direction from which it came. What would the final velocities ?goalie and ?puck of the goalie and the puck, respectively, be in this case? Assume that the collision is completely elastic.
3. This problem refers to the figure below: mmm There are 3 identical bobs of mass m hanging side-by-side. Two are then lifted to a height of h and released. The collisions in this problem are elastic. Answer the following questions: (a) Let's call the initial and final state immediately before and after the collision, respectively. Write down the initial momentum and kinetic energy of the system in terms of m and h. (b) Show that, after the collision, the left and center bobs rise to height h while the right bob becomes stationary. In particular, show that the center bob acts as if it were swinging freely as a lone pendulum.
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A 70.0 kg ice hockey goalie, originally at rest, has a 0.280 kg hockey puck slapped at him at a velocity of 43.5 m/s. Suppose the goalie and the puck have an elastic collision, and the puck is reflected back in the direction from which it came. What would the final velocities ?goalie and ?puck of the goalie and the puck, respectively, be in this case? Assume that the collision is completely elastic.
Can you help me with this problem A 0.156 kg glider is moving to the right on a frictionless, horizontal air track with a speed of 0.900 m/sm/s. It has a head-on collision with a 0.291 kg glider that is moving to the left with a speed of 2.15 m/s Suppose the collision is elastic.Find the magnitude of the final velocity of the 0.156 kg glider in m/s. Find the magnitude of the final velocity of the 0.291 kg glider in m/s
I. A lump of clay (m = 3.01 kg) is thrown towards a wall at speed v = 3.15 m/s. The lump sticks to the wall. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision. II. Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 3.15 m/s. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision. III. Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 2.24 m/s. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic…
Use the worked example above to help you solve this problem. A car with mass 1.54 x 103 kg traveling east at a speed of 29.7 m/s collides at an intersection with a 2.47 x 103 kg van traveling north a speed of 17.2 m/s, as shown in the figure. Find the magnitude and direction of the velocity of the wreckage after the collision, assuming that the vehicles undergo a perfectly inelastic collision (that is, they stick together) and assuming that friction between the vehicles and the road can be neglected. 0.8 magnitude Your response differs significantly from the correct answer. Rework your solution from the beginning and check each step carefully. m/s direction 47.11 ° counterclockwise from the +x-axis
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An 8-g bullet is fired horizontally to a wooden cube with a mass of 9 kg at rest. The bullet and wooden cube stick together. The cube moved at a velocity of 40 cm/s after the impact. Calculate the final velocity of the bullet.
How would you find the velocity of the cue ball after the collision? (Please include magnitude and direction). Also, would this be an elastic or inelastic collision?
TWO-PART QUESTION PART ONE: A 12000 kg tank moving at 8 m/s is broughtto a halt in 1.5 s by a reinforced-steel tankbarrier.What magnitude of the impulse was imparted to the tank?Answer in units of kgm/s. PART TWO: What is the average net force exerted bythe tank on the barrier?Answer in units of N.