Steven is doing interval training and runs at different paces throughout his workout. At times he runs at 0.5 m/s, other times he reaches a huge 3 m/s. If he begins his run at 0m and ends it at 1000m to the right, what is his average velocity if his run lasts a total of 500 seconds? Don't forget units and directions if appropriate.

For general projectile motion, when the projectile is at the highest point of its trajectory, its acceleration is zero? a)the horizontal and vertical components of its velocity are zero. b) its velocity is perpendicular to the acceleration. c)the horizontal component of its velocity is zero. d)its velocity and acceleration are both zero.

If steel is more dense that lake water, why can a boat float

A2-kg bowling ball is 2.5 meters off the ground on a post when it falls. just before it reaches the ground, it is traveling 7 m/s. assuming that there is no air resistance, which statement is true?