Two projectiles A and B are thrown with the same speed such that A makes angle q with the horizontal and B makes angle q with the vertical, then:
Correct answer: D. Both may have same time of flight
- A. Both must have same time of flight
- B. Both must achieve same maximum height
- C. A must have more horizontal range than B
- D. Both may have same time of flight
Explanation
When projectiles are thrown with the same speed, the time of flight is determined by the vertical component of velocity, which is the same for both projectiles A and B. This is why both projectiles may have the same time of flight despite being thrown at different angles.The other options are incorrect because the time of flight, maximum height, and horizontal range are all influenced by different components of velocity, which vary for projectiles A and B due to the different angles of projection.
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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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