**Projectile Motion Problem**A 44.0-kg projectile is fired at an angle of 30.0° above the horizontal with an initial speed of 140 m/s from the top of a cliff 124 m above level ground, where the ground is taken to be \( y = 0 \).**(a)** What is the initial total mechanical energy of the projectile? (Give your answer to at least three significant figures.)\[ \_\_\_\_\_\_\_ \, \text{J} \]**(b)** Suppose the projectile is traveling 99.2 m/s at its maximum height of \( y = 328 \, \text{m} \). How much work has been done on the projectile by air friction?\[ \_\_\_\_\_\_\_ \, \text{J} \]**(c)** What is the speed of the projectile immediately before it hits the ground if air friction does one and a half times as much work on the projectile when it is going down as it did when it was going up?\[ \_\_\_\_\_\_\_ \, \text{m/s} \]**Need Help?** [Read it]

Given :Mass of projectile is 44 kgAngle of projectile is 30°Initial speed is 140 m/sHeight of cliff…

Answered: A 44.0-kg projectile is fired at an…

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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