a 4.5 kg dog stands on an 18 kg flatboat at distance D=6.1 m from the shore. It walks 2.4 m along the boat toward shore and then stops. Assuming no friction between the boat and the water, find how far the dog is then from the shore. (

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A: Mass of the ball (m)=0.058 kg Final Speed (v)=25 m/s Time of contact∆t=2.5×10-3 s

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