12th Edition

ISBN: 9781260265453

Author: BEER

Publisher: MCG

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In physics, the rule of the conservation of energy states that energy doesn’t disappear from the atmosphere; instead, it changes its form from one type to another. Energy is one of the most important physical quantities in nature, and it cannot be create…

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Chapter 11.5, Problem 11.140P

A motorist starts from rest at point A on a circular entrance ramp when t = 0, increases the speed of her automobile at a constant rate, and enters the highway at point B. Knowing that her speed continues to increase at the same rate until it reaches 100 km/h at point C, determine (a) the speed at point B, (b) the magnitude of the total acceleration when t = 20 s.

Fig. P11.140

Chapter 11.5, Problem 11.140P, A motorist starts from rest at point A on a circular entrance ramp when t = 0, increases the speed

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Chapter 11.5, Problem 11.139P

Chapter 11.5, Problem 11.141P

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SAMPLE PROBLEM A motorist is traveling on a curved section of highway of radius 2500 ft at the speed of 60 mi/h. The motorist suddenly applies the brakes, causing the automobile to slow down at a constant rate. Knowing that after 8 s the speed has been reduced to 45 mi/h, determine the acceleration of the automobile immediately after the brakes have been applied. V= 60 mi /h 2500 ft

Please solve with white paper and detailed solution thanks Q2/ PROBLEM 11.46 Car A is parked along the northbound lane of a highway, and car B is traveling in the southbound lane at a constant speed of 60 mi/h. At t 0, A starts and accelerates at a constant rate a,, while at t = 5 s, B begins to slow down with a constant deceleration of magnitude a /6. Knowing that when the cars pass each other x = 294 ft and v, = v, detemine (a) the acceleration a, (b) when the vehicles pass each other, (c) the distance d betwveen the vehicles at 1 = 0. (v= G0 mi/h (Da)g = 0 B

PROBLEM 11.46 Car A is parked along the northbound lane of a highway, and car B is traveling in the southbound lane at a constant speed of 60 mi/h. Att=0, A starts and accelerates at a constant rate a, while at t=5s, B begins to slow down with a constant deceleration of magnitude a 16. Knowing that when the cars pass each other x = 294 ft and v =VR, determine (a) the acceleration a, (b) when the vehicles pass each other, (c) the distance d between the vehicles at t=0. (-60 mi/h (l 0 Name - Mortada Ali SOLUTION Qassem VA =0+a,t Xg =0+(vg)ot (và)o =60 mi/h = 88 ft/s Xg = (88 ft/s)(5 s) = 440 ft 1 Va = ("g), + a»(t – 5) ag =--a, Assume t> 5 s when the cars pass each other. At that time (t AB ), VA = VB: astAB = (88 ft/s) – -(1 AB -5) 294 ft =ai. = 294 ft: a,(공AB-8)- 88 Then %3D 294 441B - 343t AB + 245 = 0 or Hey I want a nice handwriting please with my name the same solution

Chapter 11 Solutions

VECTOR MECH...,STAT.+DYN.(LL)-W/ACCESS

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Solution Summary: The author calculates the length of the road from point A to point C using the relation: cv_1.

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