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For a particle in motion distance-time graph is shown in Fig. From graph answer the following:

(i) During which time period particle is stationary?

(ii) Find magnitude of velocity in OA, AB and BC parts.

Asked by Topperlearning User 17th June 2016, 3:11 PM
Answered by Expert

(i) Particle is stationary during time 10 s to 20 s as the displacement-time graph is a straight line parallel to time axis during this time interval.

(ii) Velocity in OA part= Slope of line OA= 30/10 = 3 m/s

Velocity in AB part = 0 m/s, as the particle is stationary.

Velocity in BC part = Slope of line BC

                         begin mathsize 12px style equals fraction numerator 50 minus 30 over denominator 30 minus 20 end fraction end style

Answered by Expert 17th June 2016, 5:11 PM
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