 # 3.1 Force and its Effects

• Introduction

This section covers the following syllabus (Physics 5059) requirements.

•  add two vectors to determine a resultant by a graphical method
•  solve problems for a static point mass under the action of 3 forces for 2-dimensional cases (a graphical method would suffice)

# 3.3 Newton’s Laws of Motion

This section covers the following syllabus (Physics 5059) requirements.

•   apply Newton's Laws to:

(i) describe the effect of balanced and unbalanced forces on a body

(ii) describe the ways in which a force may change the motion of a body

(iii) identify action-reaction pairs acting on two interacting bodies

(stating of Newton's Laws is not required)

•  recall and apply the relationship resultant force = mass × acceleration to new situations or to solve related problems

# 3.4 Types of Forces and Free-body Diagrams

This section covers the following syllabus (Physics 5059) requirements.

•  explain the effects of friction on the motion of a body
•  identify forces acting on an object and draw free body diagram(s) representing the forces acting on the object (for cases involving forces acting in at most 2 dimensions)