Is friction opposite or same direction to the motion of an object?
.
Charge of a proton
+1
Force that pulls objects towards Earth
Gravity
Example of sliding friction
.
Name Newton's second law
The second law states that the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object.
Give an example of inertia
.
Only force acting on an object is gravity
.
What are the elementary particles?
.
Example of rolling friction
.
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