What is the force on a 1-kilogram ball that is falling freely due to the pull of gravity

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.

Amira pulls a 3 pound wagon 4 feet. how much work has she done?

Need this now! do pilots live long