Question #83f7e
1 Answer
They will meet at a point X 118 m from where A started after 17 s.
Explanation:
A
We use the fact that both runs share the same time t.
We have 3 unknowns and we can set up 3 simultaneous equations to solve them.
We know that average velocity = distance travelled / by the time taken.
and we know that:
Substituting this into
From
Substituting this into
This is the time taken for the runners to meet.
Rearranging
This is the distance from point A where they meet.
Check the distance that B has run:
As you would expect runner A covers more distance than runner B as he/she is running faster.