Engineering Mechanics Analysis of force system and equilibrium of particles

ENGINEERING MECHANICS
Pamantasan ng Cabuyao COE 112
Analysis of Force System and Equilibrium of Particles Practice Questions

Assessment Task 1 and 2.
Answer the following questions and problems. (For problems requiring a solution present it in detail.)

1. Identify the Newtons Law in the given situation.
a. A man briskly walking. - Newton’s 2nd Law of Motion
b. A cat sleeping on top of the refrigerator. – Newton’s 3rd Law of Motion
c. Police patrol chasing a thief. - Newton’s 2nd Law of Motion
d. A boy pushing a wall. - Newton’s 3rd Law of Motion
e. Athletes practicing hurdles in an oval stadium. - Newton’s 1st Law of Motion

2. Given the following vectors: A =6i – 5j -3K, B=-4i+7k-8j, C=2i-6j+9k
Find the following.
a. A•B




b. B•(C•A)

, c. AxB




d. Cx(BxA)




e. (AxC)XA




3. Given the following vectors determine the following:
a. R=B+E using triangle method
b. R=C+B using parallelogram method
c. R=D+B using triangle method and parallelogram method
d. R=A+C+D+B using polygon method
e. R=C+A+B+E using component method
f. R=A+B+C+D+E using polygon and component method.