Rower Goes Upstream 2.8 km in 48 Minutes

  • MHB
  • Thread starter Bushy
  • Start date
In summary, the speed of a rower can be calculated by dividing the distance traveled by the time taken. The rower's speed is affected by the direction of the current, with upstream currents making it more difficult to move forward and downstream currents making it easier. Without any current, it would take the rower approximately 48 minutes to travel the same distance. Knowing the time and distance traveled is important for training and improving techniques, as well as comparing different rowing conditions. The speed of the current directly affects the rower's journey by either assisting or hindering their motion.
  • #1
Bushy
40
0
A rower travels upstream at 6 km/hand back to the starting place at 10 km/h.The total
journeytakes 48 minutes. How far upstream did the rower go?

My approach is to use speed = distance / time

The total time =upstream time + downstream time

In hours

0.75 = x/6 + x/10

solving I get 45 = 10x + 6x

x = 2.8 km


 
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  • #2
Hmmm...well 48 minutes is 4/5 of an hour, not 3/4. :D
 

FAQ: Rower Goes Upstream 2.8 km in 48 Minutes

How is the speed of the rower calculated?

The speed of the rower can be calculated by dividing the distance traveled (2.8 km) by the time taken (48 minutes). This gives a speed of approximately 3.5 km/h.

Is the rower's speed affected by the direction of the current?

Yes, the rower's speed is affected by the direction of the current. When rowing upstream, the current acts against the rower's motion, making it more difficult to move forward and decreasing their speed. When rowing downstream, the current assists the rower's motion, making it easier to move forward and increasing their speed.

How long would it take the rower to travel the same distance without any current?

If the rower were to travel the same distance of 2.8 km without any current, their speed would remain the same at 3.5 km/h. Therefore, it would take approximately 48 minutes to travel the distance without any current.

What is the significance of knowing the time and distance traveled for the rower?

Knowing the time and distance traveled allows for the calculation of the rower's speed and can provide valuable information for future training and improving rowing techniques. It also allows for the comparison of different rowing conditions and the impact of external factors such as current.

How does the speed of the current affect the rower's journey?

The speed of the current directly affects the rower's journey by either assisting or hindering their motion. A faster current will increase the rower's speed when moving downstream and decrease their speed when moving upstream. Similarly, a slower current will have the opposite effect.

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