Question

Two friends are sitting in a stationary canoe. At the person at the front tosses a sack to theperson in the rear, who catches the sack 2 later. Which plot in the figure shows thevelocity of the boat as a function of time? Positive velocity isforward, negative velocity is backward. Neglect any drag force onthe canoe from the water.


If the sack was heavier than in part A, how would the graph change? Assume the speed with which the heavier sack is thrown is the same as in part A.

Answer 1

We cannot see what the plots in your figure look like.

The boat will travel backwards between the time the sack is thrown and when it is caught. While the sack is in the air the boat will have a constant negative velocity. After it is caught its velocity will again be zero.

Answer 2

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