Question

1.4) Carry out the following force vector calculations using the methods suggested. a) $F_a = 3$ N at $30^\circ$ anticlockwise to the $+ve$ horizontal; $F_b = 3$ N at $30^\circ$ clockwise to the $-ve$ horizontal. Determine $F_a + F_b$ using the trigonometric method. b) $F_c = -F_a$ (from part (a)). Determine $F_b + F_c$ using the component method. c) $F_d = 6$ N at $60^\circ$ anticlockwise to the $+ve$ horizontal; $F_a$ and $F_b$ are the same as in part (a). Determine $3F_b + 2F_d - F_a$ using the component method. d) Check your answer to part (c) using the graphical method.

          1.4) Carry out the following force vector calculations using the methods suggested.
a) $F_a = 3$ N at $30^\circ$ anticlockwise to the $+ve$ horizontal; $F_b = 3$ N at $30^\circ$ clockwise to the $-ve$ horizontal. Determine $F_a + F_b$ using the trigonometric method.
b) $F_c = -F_a$ (from part (a)). Determine $F_b + F_c$ using the component method.
c) $F_d = 6$ N at $60^\circ$ anticlockwise to the $+ve$ horizontal; $F_a$ and $F_b$ are the same as in part (a). Determine $3F_b + 2F_d - F_a$ using the component method.
d) Check your answer to part (c) using the graphical method.

1.4) Carry out the following force vector calculations using the methods suggested.
a) Fa = 3 N at 30^∘ anticlockwise to the +ve horizontal; Fb = 3 N at 30^∘ clockwise to the -ve horizontal. Determine Fa + Fb using the trigonometric method.
b) Fc = -Fa (from part (a)). Determine Fb + Fc using the component method.
c) Fd = 6 N at 60^∘ anticlockwise to the +ve horizontal; Fa and Fb are the same as in part (a). Determine 3Fb + 2Fd - Fa using the component method.
d) Check your answer to part (c) using the graphical method.

Added by Kathleen E.

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