The velocity- time graph of body X and Y is shown in fig. The ratio of the acceleration of Y to the acceleration of X is:
Correct answer: A. A
- A. A
- B. B
- C. C
- D. D
Explanation
The angle made by Y along the x-axis is 60 degrees. So tan 60 = √3 The angle made by X along the x-axis is 30 degrees. So tan 30= 1/√3 Y/X = √3/1/√3 =3 : 1
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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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