Net forces
A person pushes a box to the right with a force of 10N, and no other horizontal forces are acting on it. What is the net force?
10N to the right
a guy skydiving
pull
Another common name for Newton’s First Law of Motion?
the Law of Inertia
Two people push a heavy cabinet in the same direction, one with 15 N and the other with 25 N. What is the net force?
40N
Kicking a scocer ball
push
An object at rest stays at rest, and an object in motion stays in motion at a constant velocity unless acted upon by this.
an unbalanced force (or outside force)
What is the net force? Sam is pulling 298N right, and Casen is pulling 357N left.
59N left
Opening a heavy desk drawer
pull
The natural tendency of an object to resist any change in its state of motion.
inertia
A dog pulls a toy to the left with 12 N of force, while a cat pulls the same toy to the right with 12 N of force. What is the net force?
0N
What happens to you if you are in a fast car and then you suddenly hit the brakes? What is gravity doing to you when you hit the brakes?
pushing you forward
Wearing a seatbelt in a car helps protect you during a sudden stop because of this physical property.
inertia (or Newton's First Law)
A 10 kg box is lifted upward with a force of 120 N, while gravity pulls it downward with 98 N. What is the net force?
22 N upwards
A fruit falls off of a shelf and a guy picks it up and puts it back on the shelf.
Push & Pull
If you are riding a skateboard and the front wheels suddenly hit a curb, your body flies forward because of this.
It is because of your motion/inertia