Since friction is something rubbing against each-other with resistance the answers would be... b, and e
Answer:
the answer is D
Explanation:
Since the velocity of the object is the derivative of the position graph, the area under the line in the velocity vs. time graph is the displacement of the object.
Answer:
The larger pebble has 25 times more mass.
Explanation:
To solve the exercise it is necessary to apply the work and energy conservation equations.
For the case described, the work done must be preserved and must be the same, that is,

By definition work linked to the conservation of kinetic energy would be given by






The ratio between the mass and the velocity would be,



Therefore the answer is: The larger pebble has 25 times more mass.
Atomic mass unit i’m pretty sure
C)Electric Charges Produce Electric Fields