1. Kinetic energy, K, equals the product of 1/2, the mass of an object, m, and the square of its velocity, v. Write a formula for kinetic energy. Then solve your formula for v.
2. In a circle, area and circumference can be found using the formulas A=πr2 and C=2πr, respectively. Write a formula for C in terms of A (Your answer should not contain π.)