Question

two vector of 7N acting normal to each other what is their magnitude​

Answer 1

$\sqrt{ {a }^{2} + {b}^{2} + 2ab \times cos \alpha }$

use it

Answer 2

Answer:

49√2

Explanation:

Angle between vectors =90°

cos 90=0

R= √49+49+2(49)(49)(0)

= √49+49

= 49√2