The velocity of the projectile is increased by 2 %. If other factors remain unchanged, then what will be the percentage change in the maximum height attained?
Correct answer: B. 4 %
- A. 8 %
- B. 4 %
- C. 2 %
- D. 1 %
Explanation
When the velocity of a projectile is increased by 2%, the maximum height attained is actually quadrupled. This relationship is due to the fact that maximum height is proportional to the square of the initial velocity. Therefore, the correct answer is 4%. The other options are incorrect because they do not consider this relationship between velocity and maximum height.
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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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