We can calculate velocity of an object from displacement-time graph by:
Correct answer: B. finding gradient of displacement time graph
- A. calculating area under the graph
- B. finding gradient of displacement time graph
- C. calculating area above the graph
- D. finding the length of the graph
Explanation
In a displacement-time graph, the slope or gradient of the line is equal to the velocity of the object. The steeper the line (and the greater the gradient) the faster the object is moving.
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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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