Newton's 2nd law

Question 1

Formally state Newton’s second law for constant mass

Answer 1

• The rate of change of linear momentum of an object is directly proportional to the force acting on it
• The change of momentum is parallel to the resultant force
• F = ma

Question 2

Use Newton’s second law in calculations

Answer 2

See notes page

Question 3

Appreciate that Newton’s first law introduces the concept of inertia which underpins Newton’s second law

Answer 3

• Inertia is the concept that something will remain at rest or travel at a constant velocity