Question

Two boys raising a bucket pull it at an angle 0 to each other. If each exerts a force of 20 N and their effective pull is 30 N, what is the angle between their arms ? Ans. 82° 49'1​

Answer 1

Answer:

hi

Explanation:

Let the force exerted be A and their effective pull be B.

Here, A = 20N, B = 20N, R = 30θ= ?

using R=√A^2 + B^2 + 2ABcosθ

Now, we have 30^2 = 20^2 + 2×20×20cosθ

or cosθ 30^2−20^2−20^2/2×20×20=0.125

or theta = 82^249'.

I hope this information helps you.

Good Luck