Newtons Law

Question 1

Newtons First Law?

Answer 1

> A body will remain in its state of rest or motion at constant velocity unless a non-zero resultant/net force acts on it.

Question 2

Newtons Second Law?

Answer 2

> When a net force acts on an object, the object will accelerate in the direction of the force and the acceleration is directly proportional to the force and inversely proportional to the mass of the object.

Question 3

Newtons Third Law?

Answer 3

> When object A exerts a force on object B, object B SIMULTANEOUSLY exerts an oppositely directed force of equal magnitude on object A.

Question 4

Slopes that are Perpendicular(%) ?

Answer 4

> Fg% = Fcos@
The resultant = 0.Newtons

Question 5

Slopes that are Parallel(//)?

Answer 5

> Fg// = Fsin@
The resultant = Acceleration

Question 6

What is Universal Gravitation?

Answer 6

> Each body in the universe attracts every other body with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centres.

Question 7

Define Normal Force?

Answer 7

> The force or the component of a force which a surface exerts on an object with which it is in contact, and which is perpendicular to the surface.

Question 8

Define Frictional Force?

Answer 8

> The force that opposes the motion of an object and which acts parallel to the surface.

Question 9

Define Static Frictional Force.

Answer 9

> The force that opposes the tendency of motion of a
stationary object relative to a surface.