Questions
A person pushes a box kept on a horizontal surface with force of 100 N. In unit vector notation force can be expressed as :
a
100i^+j^
b
100i^−j^
c
502i^−j^
d
502i^+j^
detailed solution
Correct option is
F=Fcos450i^+Fsin450−j^⇒ F→ = 502i^−502j^Talk to our academic expert!
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A vector rotated about its tail through an angle 450 in clockwise direction. Then the new vector is
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