A force is a push or pull on an object. Forces usually cannot be seen but their effects can. Nothing moves, changes speed, stops or changes direction without force. ... Newton's First Law of Motion states that an object at rest will remain at rest unless acted upon by an unbalanced force.
Answers & Comments
Answer:
A force is a push or pull on an object. Forces usually cannot be seen but their effects can. Nothing moves, changes speed, stops or changes direction without force. ... Newton's First Law of Motion states that an object at rest will remain at rest unless acted upon by an unbalanced force.