Explanation:
distance and time both are scaler quantity
Answer:
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Answer:

Explanation:
There are two spheres name 1 and 2 and they posses the same charge, which is +q.
And they have equal mass which is 2.098 g.
The distance between these two spheres is,
.
And the acceleration of each sphere is,
.
Now the coulumbian force experience by 1 sphere due to 2 sphere,
.
And also the newton force will occur due to this force,
.
Now equate the above two values of force will get,

Further solve this,
.
Substitute all the known variables in above equation,
.
.
Answer:
Va = 5000 m / 3600 s = 1.39 m/s
(Va - Vb) 60 = 10
Vb = Va - .167 = 1.22 m/s
(Va - Vb) T = 4200 Π where T is time for A to complete 1 more lap
.17 T = 4200 Π
T = 24700 Π time for A to again catch B
N = 1.39 * 24700 Answer:
Va = 5000 m / 3600 s = 1.39 m/s
(Va - Vb) 60 = 10
Vb = Va - .167 = 1.22 m/s
(Va - Vb) T = 4200 Π where T is time for A to complete 1 more lap
.17 T = 4200 Π
T = 24700 Π time for A to again catch B
N = 1.39 * 24700 Π / (4200 Π) = 8.2 laps
A will make 8 but not 9 rounds before catching B