Question

please find the answer​

Answer 1

Answer:

1) Using Parallelogram law of vector addition,

                  R²=A²+B²+2ABcosФ

                  R²=49+576+2×7×24×cos90   (∵cos90=0)

                  R=√625=25 N

2)  R²=9+16+2×3×4×cos60

     R²=25+12

     R=√37

Hope it helps you :)

Answer 2

Answer:

first one option B

second one option A

I hope this helps u ☺️