Question

Following sets of 3 forces act on a body. In which
case the resultant cannot be zero.
1) 10N, 10N, 10N 2) 10N, 10N, 20N
3) 10N, 20N, 20N 4) 10N, 20N, 40N​

Answer 1

Answer:

the correct answer is 4.

Explanation:

because out of 10N, 20N and 40N, any such combination is not possible which cancels out each other. For example if you take the resultant of 10 and 20N force at any angle and apply it in a direction opposite to the direction of force of 10N they are never going to cancel out each other. Hope this will help you.