Cause a change in state of rest or motion

Resultant forces do not have any effect on anything

Resultant forces only affect waves

Resultant forces do not exist

10 N (to the right)

130 N (to the right)

10 N (to the left)

130 N (to the left)

It doesn't move at all because the resultant force is zero.

It moves toward Sarah because the resultant force is 100 N.

It moves toward Jane because the resultant force is 200 N.

It doesn't move at all because the resultant force is 200 N.

A single force which has the same effect on motion as a number of forces acting at a point

When no forces are acting on a variety of points

A single force which has the same effect on motion as a number of forces acting at a number of different points.

49 forces acting on 79 points

It will accelerate at 1 m/s²

It will accelerate at 2 m/s²

It will accelerate at 3 m/s²

It will accelerate at 0 m/s²

It will remain stationary

It will move towards the direction of the resultant force

It will move in the direction of the resultant force

It will explode

1800 N

200 N

1900 N

2000 N

For the car to continue to move with the same constant velocity, the resultant force acting on the car must be equal to zero.

For the car to move with a decreasing velocity, there must be a resultant force acting in the opposite direction to the velocity.

For the car to move with an increasing velocity, there must be a resultant force acting in the same direction as the velocity.

For the car to move with increasing and decreasing velocity, there must be a resultant force acting on the car must be equal to zero.

5 N east

5 N west

10 N east

10 N west

Force is equal to mass times acceleration

A body in motion tends to stay in motion, a body at rest tends to stay at rest

for every action there is an equal and opposite reaction

E=mc²