Question #7ad24

1 Answer
ali ergin
Jan 14, 2018

#"Details are shown below."#

Explanation:

enter image source here

  • The horizontal component of vector A is drawn in blue.

# A_x= A .cos theta #

#-20=A. cos (130)#

#cos(130)=-cos (50)=-0.64278761#

#-20=A .(-0.64278761) #

#A=(-20)/(-0.64278761)#

#A=31.11" units"#

  • The vector A is drawn in red.

enter image source here

  • The vertical component of vector A is drawn in green.

enter image source here

#cos(40)=sin(50)=0.76604444#

#A_y=A. cos(40)=31.11*0.76604444#

#A_y=31.11*0.76604444#

#A_y=23.83" units"#

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