Engineering mechanics static and dynamicsFull description
Engineering Mechanics
Engineering Mechanics McqsFull description
GATE Engineering Mechanics book is very useful for student who want to prepare for GATE. This book is part of GATE correspondence course study material by THE GATE ACADEMY. http://thegatea…Full description
Riley and SturgesDescripción completa
Descripción completa
mechanicsDescripción completa
besavilla 2nd edition engineering mechanics. i made this for review purposes only..Descripción completa
besavilla 2nd edition engineering mechanics. i made this for review purposes only..Full description
Full description
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Riley and SturgesFull description
G0023
Name ______ _________ ______ ______ ______ ______ ______ ______ ______ ______ ______ ______ ______ ______ ____ _ Section Section ____ ______ ____ ____ ____ ___ _ Date ____________ General Instructions: Read and understand each statement carefully. Avoid unnecessary erasures. If you want to change your answer, answer, enclose it in a parenthesis parenthesis and write your final answer on the space provided before each number. Use black or blue pen only. Pencils are not allowed. If you have questions, raise your hand and the eam proctor will attend to you. • •
• •
PROBLEM SOLVING (4 Items x 20 Points Eac! Sol"e te #ollo$in% &ro'lem an &ro"ie te correct solution) !. At a forward forward speed of "#ft$s, "#ft$s, the truck brakes brakes were applied, applied, causing causing the wheels to stop rotating rotating.. It was observed observed that the truck to skid to stop in %#ft. &etermine the magnitude of the normal reaction and the friction force at each wheels as the truck skidded to a stop. 'olution(
1st Term, SY 2015–2016 of STI Pre Finals Examination
*Property Page 1 of
G0023
Name ______________________________________________ Section _____________ Date ____________
%.
A portion A)* of the mechanism is actuated by gear & and at the instant shown has a clockwise angular velocity #f + rad$s and a counter clockwise angular acceleration of # rad$s%. &etermine( a. -angential force eerted by gear & and b. omponents of the reaction at shaft ).
Solution: 1st Term, SY 2015–2016 of STI Pre Finals Examination
*Property Page 2 of
G0023
Name ______________________________________________ Section _____________ Date ____________
1st Term, SY 2015–2016 of STI Pre Finals Examination
*Property Page 3 of
G0023
Name ______________________________________________ Section _____________ Date ____________
".
-he system is at rest when a moment of / 0 12m is applied to gear *. 2eglecting friction, a3 determine the number of revolutions of gear * before its angular velocity reaches 1##rpm, and b3 tangential force eerted by gear * on gear A.
1st Term, SY 2015–2016 of STI Pre Finals Examination
*Property Page 4 of
G0023
Name ______________________________________________ Section _____________ Date ____________
Solution:
1st Term, SY 2015–2016 of STI Pre Finals Examination
*Property Page 5 of
G0023
Name ______________________________________________ Section _____________ Date ____________
.
-he system is at rest when a moment of / 0 12m is applied to gear *. 2eglecting friction, a3 Apply the method of impulse, b3 'olve the angular momentum equation simultaneously for the unknown time and tangential force.
'olution(
1st Term, SY 2015–2016 of STI Pre Finals Examination
*Property Page 6 of
G0023
Name ______________________________________________ Section _____________ Date ____________
*R+E OR ,-LSE (.0 Items x 2 Points Eac! /rite *R+E i# te statement is correct i# te statement is incorrect unerline te $or tat mae te statement incorrect ten $rites te correct re&lacement on te s&ace &ro"ie 'e#ore eac num'er)
!. /otion of a rigid body in a plane motion is completely defined by the resultant and moment resultant about 4 of the eternal forces. -rue %. -he eternal forces and the collective effective forces of the slab particles are not equivalent. 5quivalent ". In d6 Alembert principle, the internal forces acting on a rigid body are equivalent to the effective forces of the various particles forming the body. 5ternal . -he most general motion of a rigid body that is symmetrical with respect to the reference plane can be replaced by the sum of translation and centrifugal rotation. entroidal 7. /ost engineering applications involved liquid bodies which are moving under given constraints. Rigid
1st Term, SY 2015–2016 of STI Pre Finals Examination
*Property Page of
G0023
Name ______________________________________________ Section _____________ Date ____________ 1. Unconstrained plane motion is a motion with definite relations between the components of acceleration of the mass center and the angular acceleration of the body. onstrained Plane /otion 8. 9orces acting on rigid bodies which do not work is a forces applied to fied points. -rue +. In general, small displacements of the particles A and * are not equal but the components of the displacements along A and * are equal. -rue 1) Internal forces between particles A and * are equal and opposite which has net work equivalent of one. :ero 10!9or problems involving systems consisting of several rigid bodies, the principle of work and energy can be applied to each body. -rue
1st Term, SY 2015–2016 of STI Pre Finals Examination