The boat to make the fastest progress in its forward direction is boat
1) 1.
2) 2.
3) 3.
4) 4.
Boat 3 is not propelled in a forward direction because
5) the wind does not make impact with the sail.
6) there is no component of force parallel to the keel.
7) of air resistance on the front of the sail.
8) But it is propelled in a forward direction!
Answer: 2, 6
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You throw a ball up in the air and hold your hand under it to catch it when it comes down. The reason why the ball stops is because
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