two forces act on an object. one force has a magnitude of 30N directed west, and the other force has a magnitude of 12 N directed east. what is the net force on the object
A. 18N east
B. 42N west
C. 42 N east
D. 18N west
To find the net force on the object, we need to subtract the eastward force from the westward force.
Net force = 30N (west) - 12N (east)
= 30N - 12N
= 18N (west)
Therefore, the net force on the object is 18N west, or option D.