Question

The x-component of a vector of magnitude 6 is found to be 3. Then what is an angle made by it with the axis-x​

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11th

Physics

Motion in a Plane

Mathematical Operations on Vectors

The magnitude of the x - co...

PHYSICS

The magnitude of the x-component of vector

A

is 3 and the magnitude of vector

A

is 5. What is the magnitude of the y-component of vector

A

?

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ANSWER

A

=A

x

i

^

+A

y

j

^

Also A=

A

x

2

+A

y

2

Here A=5, A

x

=3

∴5=

(3)

2

+A

y

2

Squaring both sides we get

25=9+A

y

2

A

y

2

=25−9=16

or A

y

=4

solution