Anyone help me do this am giving the brainliest

Explanation:

The first step is to write the 1st condition of equilibrium, which states that the net force acting on the beam is zero:

where and are reaction forces at the beam supports on the left and right, respectively.

Next, the 2nd condition of equilibrium states that the net torque about a pivot point is zero. Let's choose the location of the left beam support as our pivot point, which will make the torque due to is equal to zero. Let us also assume that the counterclockwise direction produces positive torque. So we can write

Solving for we see that

Putting this value into our 1st equation, we find that the reaction force is

real, smaller and upside-down.   so the answer should be b.

0.19 m/s and 0.45 m/s