Basics knowledge for statics SEMM1203

how many Newton's law

• 1

• 2

• 3

• 4

What is Newton's first law

• The force acting on an object is equal to the mass of that object times its acceleration

• A body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force

• For every action, there is an equal and opposite reaction

What is Newton's second law

• The force acting on an object is equal to the mass of that object times its acceleration

• A body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force

• For every action, there is an equal and opposite reaction

What is Newton's third law

• The force acting on an object is equal to the mass of that object times its acceleration

• A body at rest will remain at rest, and a body in motion will remain in motion unless it is acted upon by an external force

• For every action, there is an equal and opposite reaction

Which statement describes a vector?

• It has magnitude but no direction

• It has direction but no magnitude

• It has both direction and magnitude

• It has constant magnitude but no direction

Which statement describes a scalar?

• It has magnitude but no direction

• It has direction but no magnitude

• It has both direction and magnitude

Cosine Rule:

Please choose the suitable equation to find (a)?

Cosine Rule:

Please choose the suitable equation to find (c)?

Sine rule:

Please choose the suitable equation to find (c)?