A uniform metre ruler, acted upon by three forces is balanced on a pivot as shown in Figure 1.23 A) Which one of the forces has no moment about the pivot? Explain your answer.

B)Calculate the moments of the other two forces about the pivot

C)Will the ruler turn? Explain.

Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?

What occurs during a combustion reaction

Will mark as brainliest how does a catapult increase the trajectory of an object? ps. answer as if u were a 5th grader