 A push or pull on an object

 Total amount of force applied to an object

W=20kg * 9.8m/s² W= 196N

 Newton

F=MA F= 1400 * 4.7 F= 6,580 N

 Static  Rolling  Sliding  Fluid

 Gravity and air resistance

 Fluid friction

 The object is no longer accelerating; force of gravity is equal to the force of air resistance

120N=60kg* a 120/60=a 20m/s²=a

 An object in which the only force acting is gravity

 F=MA  F=30,400 * 1.2m/s²  F=36,480 N

 Law of Inertia

 Resistance of an object to change its motion

 The magnitude (strength)

 The head of the arrow points in the direction of the force

 Motion is unchanged if the force is balanced

 The distance traveled over a certain amount time

 Speed is a scalar quantity (magntude only) and velocity is magnitude and direction

 The acceleration increases

 The greater the mass the greater the inertia

 The rougher the surface the greater the friction

 300/50 T=6 hrs

 Increase the mass

 Reaction forces are of equal force to the action but in opposite direction

 It changes the speed or direction

F=M*A F= 7 * 9.8 F=68.6 N