To work out the average speed you would have to use the formula
AS = 15.0 ÷ 30.0 = 0.5 which is distance divided by time.
The you would do 0.5 x 60 = 30 (60 minutes = 1 hour)
So the average speed would be 30.0 km/h.
The average speed of the boat will be 30 kilometers per hours. Then the correct option is B.
The distance covered by the particle or the body in an hour is called speed. It is a scalar quantity. It is the ratio of distance to time.
We know that the speed formula
Speed = Distance/Time
A boat moves 15.0 km across a lake in 30.0 min.
30 minutes = 0.5 hours
Then the average speed of the boat in kilometers per hours will be
S = 15 / 0.5
S = 30 km per hours
Then the correct option is B.
More about the speed link is given below.
https://brainly.com/question/7359669
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