A cannon ball is launched horizontally from a cannon. The cannon is on the edge of a 50 m tall cliff. What is the acceleration of the cannon ball horizontally? a 0
b Not enough information
c 50 m/s2
d 9.8 m/s2

Acompound machine is also called a machine. a. force b. simple c. complex d. directional

The two required components for a generator

Under the action of a constant force an object accelerates at 7.8 m/s2. what will the acceleration be if (a) the force is halved? (b) the object's mass is halved? (c) the force and the object's mass are both halved? (d) the force is halved and the object's mass is doubled?