Question

Two forces one of 12N and another of 5N act on abody in such away that they makes an angel of 90 with each other, what is the resultant

Answer 1

Answer:

13 N

Explanation:

From the question,

If two forces act at right angle to each other, Their result force can be calculated using Pythagoras theorem.

R'² = R₁²+R₂²....................... Equation 1

Where R' = Resultant force, R₁ = First force, R₂ = Second force.

Given: R₁ = 12 N, R₂ = 5 N

Substitute these values into equation 1

R'² = 12²+5²

R'² = 144+25

R'² = 169

R' = $\sqrt{169}$

R' = 13 N.

Hence the resultant force is 13 N