A33kg child is on a swing that hangs from 3.00m long chains as shown in the figure below. if the maximum angle the child reaches is 45° what is the child's speed at the lowest point on the swing?

An isosceles trapezoid with a perimeter of 42 inches. each of the congruent non parallel sides is 5 inches long, and the trapezoid is 3 inches tall. how long are the two parallel sides? a. 10 in, 22 in b. 16 in, 16 in c. 10 in, 16 in d. 12 in, 20 in