Question

034 10.0 points A 98 kg boat that is 6.4 m in length is initially 7.4 m from the pier. A 45 kg child stands at the end of the boat closest to the pier. The child then notices a turtle on a rock at the far end of the boat and proceeds to walk to the far end of the boat to observe the turtle. 7.4 m 6.4 m How far is the child from the pier when she reaches the far end of the boat? Assume there is no friction between boat and water Answer in units ofm

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Answer #1

Here ,

let the distance moved by the boat is x

as the center of mass will not change it's position

45 * (6.4 - x) - 45 * x = 0

solving for x

x = 3.2 m

distance of child from pier = 7.4 + 6.4 - 3.2

distance of child from pier = 10.6 m

the distance of child from pier is 10.6 m

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