A motion with increasing velocity can be represented on displacement-time graph by:
Correct answer: D. A curve line with an increasing gradient
- A. A horizontal line
- B. A curve line with a decreasing gradient
- C. A straight line with a constant gradient
- D. A curve line with an increasing gradient
Explanation
The gradient of the displacement-time graph is equal to velocity. 'Curved lines' on a displacement-time graph indicate that the velocity is changing. The object is either getting faster and in that case, the gradient of the curved line is increasing (accelerating) or slowing down (decelerating) with the gradient of the curved line decreasing.
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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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