On a grid, what is the distance between two points located at (1, 1) and (8, 4) roughly equal to? a. 9 b. 3.40 c. 7.61 d. 6.89

Which body is in equilibrium? (1) a satellite orbiting earth in a circular orbit (2) a ball falling freely toward the surface of earth (3) a car moving with a constant speed along a straight, level road (4) a projectile at the highest point in its trajectory