Answer:
Child's speed, v = 3.01 m/s
Explanation:
It is given that,
Radius of the merry- go- round, r = 7.2 m
Time of rotation, t = 15 seconds
Let v is the child's speed while sitting on the muskrat. The displacement of the child is,
[tex]d=2\pi r=2\pi \times 7.2=45.23\ m[/tex]
The speed of the child is given by :
[tex]v=\dfrac{d}{t}[/tex]
[tex]v=\dfrac{45.23\ m}{15\ s}[/tex]
v = 3.01 m/s
So, the speed of child while sitting on the muskrat is 3.01 m/s. Hence, this is the required solution.
