Question

why 3 N and 4 N does not always mean a resultant force of 7 N?

Answer 1

Answer:

The magnitude of the resultant vector is given by

R=

A

2

+B

2

+2ABcosθ

θ=90

o

cos90

o

=0

R=

A

2

+B

2

=

3N

2

+4N

2

=5N