5)A) Projectile motion A gun with muzzle velocity of 1200 ft/secis fired at an angle of 8° above the horizontal. Find the horizontaland vertical components of the velocity.B) Inclined plane Suppose that a box is being towed up aninclined plane as shown in the figure. Find the force w needed tomake the component of the force parallel to the inclined planeequal to 2.5 lb.33015°6)A force F = 2i + j - 3k is applied to a spacecraft with velocityvector v = 3i – j. Express F as a sum of a vector parallel to vand a vector orthogonal to v.7)a) Work along a line Find the work done by a force F = 5i(magnitude 5 N) in moving an object along the line from the originto the point (1, 1) (distance in meters).b) Locomotive The Union Pacific's Big Boy locomotive couldpull 6000-ton trains with a tractive effort (pull) of 602,148 N(135,375 Ib). At this level of effort, about how much work didBig Boy do on the (approximately straight) 605-km journey fromSan Francisco to Los Angeles?c) Inclined plane How much work does it take to slide a crate 20 malong a loading dock by pulling on it with a 200-N force at anangle of 30° from the horizontal?d) Sailboat The wind passing over a boat's sail exerted a 1000-Ibmagnitude force F as shown here. How much work did the windperform in moving the boat forward1 mi? Answer in foot-pounds.60°1000 lbmagnitudeforce

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5) A) Projectile motion A gun with muzzle velocity of 1200 ft/sec is fired at an angle of 8° above the horizontal. Find the horizontal and vertical components of the velocity. B) Inclined plane Suppose that a box is being towed up an inclined plane as shown in the figure. Find the force w needed to make the component of the force parallel to the inclined plane equal to 2.5 lb. 33° 15°

5) A) Projectile motion A gun with muzzle velocity of 1200 ft/sec is fired at an angle of 8° above the horizontal. Find the horizontal and vertical components of the velocity. B) Inclined plane Suppose that a box is being towed up an inclined plane as shown in the figure. Find the force w needed to make the component of the force parallel to the inclined plane equal to 2.5 lb. 33° 15°

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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