Question

A certain vector in the xy plane has an x component of 4m and a y component of
10m. It is then rotated in the xy plane so its x component is doubled Its new y
component is about​

Answer 1

Answer:

Magnitude of vector do not change by it's rotation.

Initially: X-component =4m

Y-component =10m

Finally: X-component =2×4m=8m

Y-component =y

⇒ 4² +10²

=√8²+y²

⇒y= √52=7.2m

EXPLANATION

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