Home Physics Vectors Basic Mathematics Vector is of length 2 cm and is 60º above t…
Physics Vectors Basic Mathematics MCQ (Single Correct)

Vector is of length 2 cm and is 60º above the x-axis in the first quadrant. Vector is of length 2 cm and 60º below the x-axis in the fourth quadrant. The sum + is a vector of magnitude -

A
2 cm along + y-axis
B
2 cm along + x-axis
C
1 cm along – x axis
D
2 cm along – x axis

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Text Solution

Verified by Experts
The correct answer is:
B

Only horizontal along + x-axis

⇒ 2cos 60° + 2 cos 60° = 2

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