2.  A push or pull on an object

3.  Total amount of force applied to an object

4. W=20kg * 9.8m/s² W= 196N

5.  Newton

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

7.  Static  Rolling  Sliding  Fluid

8.  Gravity and air resistance

9.  Fluid friction

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

11. 120N=60kg* a 120/60=a 20m/s²=a

12.  An object in which the only force acting is gravity

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

14.  Law of Inertia

15.  Resistance of an object to change its motion

16.  The magnitude (strength)

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

18.  Motion is unchanged if the force is balanced

19.  The distance traveled over a certain amount time

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

21.  The acceleration increases

22.  The greater the mass the greater the inertia

24.  The rougher the surface the greater the friction

25.  300/50 T=6 hrs

26.  Increase the mass

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

28.  It changes the speed or direction

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