# Sprinter

Sprinter runs the relay 4 x 400 m to the handover at speed 42 km/h. A second runner is at the start of the handover area 20 m long and runs when it is the first sprinter at distance 10 m. Calculate the speed at which the second runner must run in order to handover occurred at the end of the handover area. Consider that the speed of both runners are constant.

**Result****Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):**

**Showing 0 comments:**

**Be the first to comment!**

#### To solve this example are needed these knowledge from mathematics:

## Next similar examples:

- The ship

The ship went upstream speed of 20 km/h in relation to water. River flows at speed 10 km/h. After half an hour, he stopped and returned downstream to the starting point. How long it took way back when even if downstream speed of ship is 20 km/h in relation - Pedestrian

Pedestrian came started at 8h in the morning with speed 4.4 km/h. At half-past eleven cyclist started at 26 km/h same way. How many minutes take cyclist to catch up pedestrian? - Runner 2

Marian run 12 meters in 8 seconds. How far would Marian run for 70 seconds, if still run at the same pace? - Cars 6

At 9:00 am two cars started from the same town and traveled at a rate of 35 miles per hour and the other car traveled at a rate of 40 miles per hour. After how many hours will the cars be 30 miles apart? - Storm

So far, a storm has traveled 35 miles in 1/2 hour in direction straight to observer. If it is currently 5:00 p. m. and the storm is 105 miles away from you, at what time will the storm reach you? Explain how you solved the problem. - Father and son

Father is 48 years old, son 23. When will be the father twice older than a son? - Unknown number

Identify unknown number which 1/5 is 40 greater than one tenth of that number. - Simple equation

Solve for x: 3(x + 2) = x - 18 - Reciprocal equation

Determine the root of the equation: 9/x-7/x=1 - Cows

4 cows spent 16 bags of hay in 5 days. How many bags of hay sacks is needed for 5 cows for seven days? - Six years

In six years Jan will be twice as old as he was six years ago. How old is he? - Donuts

Find how many donuts each student will receive if you share 126 donuts in a ratio of 1:5:8 - Liters od milk

The cylinder-shaped container contains 80 liters of milk. Milk level is 45 cm. How much milk will in the container, if level raise to height 72 cm? - Fifth of the number

The fifth of the number is by 24 less than that number. What is the number? - 1.5 divided

1.5 divided by 1 = w divided by 4 - Equation

Solve the equation: 1/2-2/8 = 1/10; Write the result as a decimal number. - Masons

1 mason casts 30.8 meters square in 8 hours. How long casts 4 masons 178 meters square?