Answered: 1. Derive the equation of projectile…

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Mechanical Engineering

1. Derive the equation of projectile motion for the maximum range of the projectile fired at an angle equal to 90 deg.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter11: Heat Transfer By Radiation

Section: Chapter Questions

Problem 11.4P

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Forced undamped vibrations

In mechanical engineering, vibration is expressed as the term that occurs due to an object's backward and forward movement about a point of equilibrium. Generally, there are three types of vibrations which are,

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1. Derive the equation of projectile motion for the maximum range of the projectile fired at an angle equal to 90 deg.

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Step 1: Draw a diagram for the projectile fired at an angle equal to 90 deg.

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Step 2: Derive the equation of projectile motion for above projectile motion

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4.1. A hunter aims a rifle directly at a squirrel on a branch of a tree. The squirrel sees the flash of the rifle's firing. Should the squirrel stay where it is or drop from the branch in free fall the moment the rifle is fired? 4.2. A stone is dropped from the edge of a cliff. (a) What is its velocity in meters per second 3 s later? (b) How far does it fall in this time? (c) How far will it fall in the next second? 4.3. A girl throws a ball 20 m vertically into the air. (a) How long does she have to wait to catch it on the way down? (b) What was its initial velocity? (c) What will be its final velocity? 4.4. The Sears Tower in Chicago is 1454 ft high. (a) How long would it take an object dropped from the top of the building to reach the ground? (b) What would the object's final velocity be? 4.5. A body in free fall reaches the ground in 5 s. (a) From what height in meters was it dropped? (b) What is its final velocity? (c) How far did it fall in the last second of its descent? 4.6.…
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