The total time taken by a projectile from starting at the surface of the earth to landing again on it is given by:
Correct answer: B. Option B
- A. Option A
- B. Option B
- C. Option C
- D. Option D
Explanation
Explanation: The total time taken by a projectile from starting at the surface of the earth to landing again on it includes both the time it takes to ascend and descend. Option B provides the correct understanding of considering the full journey of the projectile. Options A, C, and D do not account for the entire motion of the projectile, leading to incorrect answers.
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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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