An object moving in a circle is represented by the motion map. Based on the map, at which point is the object accelerating towar
d the right? W X Y Z
2 answers:
Answer:
Z
Explanation:
The object in the map is moving by circular motion: therefore, there is a force (called centripetal force) that pulls the object towards the centre of the circle.
According to Newton's second law,
a force on the object corresponds to an acceleration, and this acceleration (called centripetal acceleration) has the same direction of the force. Therefore, since the acceleration is towards the centre of the circle as well, the only point of the trajectory where the acceleration is towards the right is at point Z.
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Answer:
a.
b.Repulsive
Explanation:
We are given that
r=1.66m
We know that
Electrostatic force =
r=Distance between
k=Constant=
Using the formula
a.The magnitude of the electrostatic force=
The magnitude of the electrostatic force=
b.Both charge are positive .We know that when like charges repel each other and unlike charges attract to each other.
Therefore, the force between given charges is repulsive.