Question

Two forces P and Q are acting on the same body .If P=(25±0.2) N,Q=(16±0.7)N.Find their resultant when the two forces are 1.same direction and 2.in opposite direction

Answer 1

Answer:

for same direction we use positive sign (+). and for opposite direction we use negative sign (-)

Explanation:

total force =(25+_ 0.2)+(16+_0.7)

1. same direction= 25+0.2)+(16+0.7)N
2. for opposite direction we have. (25-0.2) - (16-0.7)N