While moving a boat forward we have to:
Correct answer: B. Push water backward
- A. Push water forward
- B. Push water backward
- C. Keeps the water steady
- D. Keeps the water undisturbed
Explanation
According to Newton's third law of motion, every action has an equal and opposite reaction. So if a boatman wants to move the boat ahead in water, he has to push the water backwards. By pushing the water, the boatman applies a force on the water in a backward direction. In turn, water applies the same amount of force in forward direction, moving the boat ahead.
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About Force and Motion
Displacement, velocity and acceleration describe motion, including the horizontal and vertical components of projectile motion. The chapter connects these quantities with Newton's laws, momentum and impulse, then applies conservation of momentum to collisions, distinguishing elastic collisions from inelastic ones.
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