The resultant of four forces is 1000 N in the direction 30° west of North. Three forces are 400 N, 60° North of East,200 N south and 400 N 53° west of south. The rectangular components of the fourth force are ??

When considering gravity acceleration and the force of acceleration, what must be true? a. the direction of acceleration must be perpendicular to the direction of the force. b. the direction of the force and the direction of acceleration must be the same as each other. c. the direction of the force and the direction of acceleration must be opposite of each other. d. the mass of the body must be the same as the acceleration of the body.