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QUESTION 1 A boat is able to move over still water at 19 m/s. If the...

QUESTION 1

A boat is able to move over still water at 19 m/s. If the boat makes a round trip to a town which is 3.4 km upstream and back to the starting point and the river flows at 9.4 m/s, find the time required to complete the round trip.

The time of the round trip with the river current, t1 =  

If the water is still (meaning there is no current) then the time of the round trip would (increase, decrease, be the same, it depends on the parameters)

The time of the round trip if there is no current, t2 =  

QUESTION 2

Dodge Challenger SRT Demon can speed up from rest to 60 mph in 2.3 seconds. What average force is required to accelerate the vehicle if it's total weight is 4243 lb? Submit you answer in pounds.

The average force, f =  

What distance does the car travel during the acceleration period?

The traveled distance, d =

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