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1. ### Can anyone help me please?

Runner A, who runs with an average speed of 3.0 m/s, starts out at 3:00 P.M. Runner B, who runs with an average speed of 4.0 m/s, starts after A from the same place exactly 5 min later. a.) At what time will runner B catch up with runner A? b.) If the runners stop when B catches A, how far do...
2. ### Help with homework?

Help with homework?? Runner A, who runs with an average speed of 3.0 m/s, starts out at 3:00 P.M. Runner B, who runs with an average speed of 4.0 m/s, starts after A from the same place exactly 5 min later. a.) At what time will runner B catch up with runner A? b.) If the runners stop when B...
3. ### Can anyone show me how to work this problem out?

Can anyone show me how to work this problem out? The speed of light is 3.0*10^8 m/s and the speed of sound is 340 m/s. Find the vaule of the interger n in the following statement:"If you start counting seconds when you see something happen and stop when you hear it happen, for every n seconds...