Revise GCSE Physics


Question:What can we say about the size and direction of a resultant force in each of these circumstances? 1. The speed of an object increases. 2. The speed of an object decreases. 3. The speed of an object remains constant.

1 - The resultant force is not zero and is in the direction of the objects motion.

2 - The resultant force is not zero and acts in the direction opposite to the object motion.

3 - The resultant force is zero.