Question

P vector Q vector have magnitude 3 unit 5 unit respectively R vector is a resultant of P vector and Q vector.find the magnitude and direction of R vector when angle betn p vector and q vector is 30 degree

Answer 1

Answer:

34 - 15√3

Explanation:

R = 3² + 5² - 2×3×5cos30° = 34 -30cos30° = 34 - 15√3 units