Two runners start simultaneously from the same point on a circular 200-m track and run in opposite directions. One runs at a constant speed of 6.50 m/s , and the other runs at a constant speed of 5.00 m/s. Required:
a. When will the fast one first overtake ("lap") the slower one?
b. How far from the starting point will each have run at that instant?
c. When will the fast one overtake the slower one for the second time?
d. How far from the starting point will they be at that instant?

17.4 s

Slower runner = 87 m, Faster runner = 113 m

34.78 s

Slower runner = 87 m, Faster runner = 113 m

Explanation:

When the runners will cross each other they both would have run the same amount of time .

The total distance they both will cover when they will meet for the first time will be 200 m.

Velocity of the slow runner is 5 m/s and the other runner is 6.5 m/s.

Distance is given by so

Both runners would have been running for 17.4 s when they would have met.

Distance covered by the slow runner is

Distance covered by the other runner is

For the second time  total distance they both will cover when they will meet for the first time will be 400 m.

Both runners would have been running for 34.78 s when they would have met for the second time.

The runners will meet at the same distance from the starting point as they did the first time but the distances they cover would be double the distance they ran the first time.

i am pretty sure it is c because when people are closer together, they cannot move as freely. picture being in a mostly full elevator, for instance. the people are right next to you, and you can barely move.

the answer is ampere

the ampere is used to measure electricity. an ampere is a unit of electric current equal. a unit of measure for the flow of current in a circuit. one ampere is the amount of current flow provided when one volt of electrical pressure is applied against one ohm of resistance.