Question

please give the answer ​

Answer 1

Answer:

• Speed must be positive. But in that graph at particular instant, it is negative also. So, graph is incorrect.

Explanation:

• Speed is a scalar quantity. So, don't have direction.

∴ Always positive.

Answer 2

Given in the graph, the graph represents non - uniform motion and speed's magnitude as negative.

But speed is a scalar quantity, that is, it can never be negative. The graph should always be in the first quadrant of the Cartesian plane.

But in case of a velocity time graph, this can be possible since it is a vector. Or, it can be negative, if displacement is negative.

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