The 2-lb brick slides down a smooth roof, such that when it is at A it has a velocity of 5 ft/s. Determine the speed of the brick just before it leaves the surface at B and the speed at which it hits the ground. A 51/s Speed at B A) 21.48 f/s, B) 31.48 fl/s, C) 41.48 ft/s 15 ft Speed at C A) 34.1 ft/s, B) 44.1 f/s, C) 54.1 ft/s 30 ft

The 2-lb brick slides down a smooth roof, such that when it is at A it has a velocity of 5 ft/s. Determine the speed of the brick just before it leaves the surface at B and the speed at which it hits the ground. A 51/s Speed at B A) 21.48 f/s, B) 31.48 fl/s, C) 41.48 ft/s 15 ft Speed at C A) 34.1 ft/s, B) 44.1 f/s, C) 54.1 ft/s 30 ft

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Basic Terminology in Mechanics

The area of science and mathematics concerned the motion of the objects, the relation between the force matter, and motion if specified. Forces exerted over the objects result in displacements or changes in the position of an object concerning its environment. This branch of physics keeps its roots in Ancient Greece in the form of the scripts of Aristotle and Archimedes.

Question

24] (5 Marks)
The 2-lb brick slides down a smooth roof, such that when it is at A it has a
velocity of 5 ft/s. Determine the speed of the brick just before it leaves the
surface at B and the speed at which it hits the ground.
A.
Speed at B
A) 21.48 f/s, B) 31.48 fl/s, C) 41.48 fl/s
15 t
Speed at C
A) 34.1 ft/s, B) 44.1 f/s, C) 54.1 ft's
30 ft

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