Question
A boy of mass 60 kg stands on a boat of mass 250 kg. This system is stationary. From the boat, the boy throws a rock of mass 1 kg into the water with a velocity of 10 m/s. What is the magnitude and direction of the boat's motion as a result of this?
A)
The boat moves in the direction of the rock with a velocity of 31 m/s.
B)
The boat moves in the direction of the rock with a velocity of 0.02 m/s.
C)
The boat moves in a direction opposite to the rock with a velocity of 0.03 m/s
D)
The boat moves in a direction opposite to the rock with a velocity of 10.1 m/s.
A)
The boat moves in the direction of the rock with a velocity of 31 m/s.
B)
The boat moves in the direction of the rock with a velocity of 0.02 m/s.
C)
The boat moves in a direction opposite to the rock with a velocity of 0.03 m/s
D)
The boat moves in a direction opposite to the rock with a velocity of 10.1 m/s.
Answers
clearly not A or B
since the rock is so much smaller than the boat system, the boat will move much more slowly, right?
since the rock is so much smaller than the boat system, the boat will move much more slowly, right?
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