Two forces F1 and F2 are applied to a plank that supports a body of mass m, as shown in the figure. The distances between these forces and the body of mass m are L1 and L2, respectively. A. The values of F1 and F2 in static equilibrium depend on the choice of the axis of rotation.
B. In static equilibrium F1 = F2 for any values of L1 and L2.
C. The value of the sum (F1+ F2) that corresponds to static equilibrium is indepdendent of L1 and L2.
D. In static equilibrium, if L1 > L2, then F1 > F2.

The correct answer is - option C.

Explanation:

Given:

Two forces on a plank = F1 and F2

mass of plank = m

The distances between these forces and the body of mass m =  L1 and L2

we know that,

mg = F1 +F2 ( independent of L1 and L2)

so almost any point the value of the sum that corresponds to static equilibrium is independent of L1 and L2.

Thus, the correct answer is - option C.

i think it’s a. this is because if they measured the mass of something with a mass of 150g, then their final answer would have to be approximately 150g. though all of their answers are almost 150, rosa and tran have the closest answers (or the exact answer) to the accurate one.

moving ball hits still ball. mover stops, hit ball moves. momentum transfer.