Question

In the displacement d versus time t graph given below, the value of average velocity in the time interval 0 to 20 s is (in m/s)(a) 1.5 (b) 4(c) 1 (d) 2

Answer 1

Average velocity = displacement / time

Net displacement in 20 secs acc to graph = 40 m

Time = 20 secs

Average Velocity = 40/20 = 2 m/s

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Answer 2

Answer:

The answer is (c).

Explanation:

At 20s the displacement is 20 m

Average Velocity(v)=Total Displacement/Total Time taken

$\frac{s}{t}$ = 1m/s