Question

Two forcees 10 N AND 14 Nare acting up on a body. What can be the maximum and minimum resultant force on the body ?

Answer 1

Here, A= 10 N ; B= 14 N R= sqrt of A^2 + B^2 + 2 AB cosθ a) R will be maximum if cosθ= 1 , then R= (A+B)=10+14=24 N in the direction of 14 N b) R will be minimum if cosθ= -1 , then R= (A-B) or (B-A) = 14- 10 =4 N in the direction of 14 N