Question

A vector a makes an angle of 20 and b makes an angle of 110 with x axis the magnitude of these vectors is 3m and 4m respectively. find the restultant

Answer 1

Hi buddy,
Here use formula
$\sqrt{a^{2} + b ^{2} + 2ab \cos( \alpha ) }$
which will give you resultant R
(alpha is measure of angle, put a=3 and b=4
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Answer 2

Answer is 5 m
We can find it using Pythagoras theorem.
A^2+B^2=C^2


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