Marta is training for the track team. She can run 100m in 20 seconds. What is Marta’s speed in metres per second? How far can Marta run in 4 minutes if she is running at the same speed?

Question

Marta is training for the track team. She can run 100m in 20 seconds. What is Marta’s speed in metres per second? How far can Marta run in 4 minutes if she is running at the same speed?

Answer 1

To calculate Marta's speed in metres per second, we use the formula:

Speed = Distance / Time

Given that Marta can run 100m in 20 seconds:

Speed = 100m / 20s = 5 m/s

Therefore, Marta's speed is 5 metres per second.

If she runs for 4 minutes at this speed, we first need to convert 4 minutes to seconds:

4 minutes = 4 minutes x 60 seconds/minute = 240 seconds

Now, we can calculate how far Marta can run in 240 seconds:

Distance = Speed x Time = 5 m/s x 240 s = 1200m

Therefore, Marta can run 1200m (or 1.2km) in 4 minutes at her speed of 5 metres per second.

Answer 2

She is not at the four minute mile stage yet :(

Answer 3

I apologize for the mistake. Let's correct the calculation using the given information.

If Marta can run 100m in 20 seconds, her speed is 5 m/s.

To calculate how far Marta can run in 4 minutes (240 seconds) at this speed:

Distance = Speed x Time
Distance = 5 m/s x 240 s = 1200m

Therefore, Marta can run 1200 meters (or 1.2 kilometers) in 4 minutes at her current speed of 5 meters per second. Thank you for pointing out the error.

Answer 4

I see no error, I was just thinking that 1200 meters is a good deal short of a mile.

Answer 5

Thank you for your understanding. Yes, you are correct. A mile is equivalent to 1609.34 meters, so running 1200 meters is indeed short of a mile. Marta's current speed and distance covered are still impressive, but she has some work to do before reaching the four-minute mile stage. Thank you for clarifying!