Question

The ratio of maximum to minimum

magnitudes of resultant of two vectors P
and is 3:1. Then
a. P 20
b. P Q

P=40
d. P=30​

Answer 1

Answer:

Explanation:When they point the same direction, this gives a maximum resultant:

Rmax =P + Q

When they point opposite directions, this gives a minimum resultant:

Rmin = P - Q

Rmax/Rmin = 3/1

(P + Q)/(P - Q) = 3/1

P + Q = 3P - 3Q

2P = 4Q

P = 2Q

Was