Question

8. Two identical metallic balls A and B have charges +40
and - 10 pc respectively. The distance between them
is 20 m. What is the magnitude and type of force
acting between them? They are touched to each other
and again separated by a distance of 2.0 m from each
other. Calculate the new force between them. What
will be the force if one ball is connected to earth?
Ans. 0.90 N (attraction), 0.51 N (repulsion), zero.​

Answer 1

Answer:

Speed=distance/time . i.e. speed never decreases with time because speed is not directly proportional to time so when speed decreases time increases and when speed increases time decreases .