Question

The magnitude of the resultant of two forces acting at any angle lies between
0 and sum of the magnitudes of the two forces
0 and difference of the magnitudes of the two forces
difference of the magnitudes and sum of the magnitudes of the two forces
none of the above

Answer 1

Answer:

let the magnitude of smaller force is p the magnitude of larger force is q and the resultant force is R as the resultant force makes 90degrr with the smaller force P then Q forms the hypotenus of the triangal

thus it can be written as

Q2-P2=R2

Q2-P2=(12)2

Q2-P2=144

the sum of magnitude of two forces is given as

p+Q=18

Q=18-P

substitute the valur of p in equation (1) we get q=18-5

13n