If initial velocity of projectile is doubled then which is correct?
Correct answer: D. D
- A. A
- B. B
- C. C
- D. D
Explanation
The formula for time is = 2 ( vi sin θ )/g T is directly proportional to Vi and hence doubling it will give double time.The formula for vertical height is = vi^2 x sin^2 θ /2g Vertical height is directly proportional to Vi^2 and hence doubling it will give 4 times height.Range of flight is= vi^2 x sin*2 θ /g Range is directly proportional to Vi^2 and hence doubling it will give 4 times rangeHence, D is the correct one .
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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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