A particle starts from rest. Its acceleration versus time (t) is as shown in the figure. The maximum speed of the particle will be:
Correct answer: B. 55 m/s
- A. 110 m/s
- B. 55 m/s
- C. 550 m/s
- D. 1.1 m/s
Explanation
Area under an acceleration time graph gives the change in velocity. As the particle is starting from rest Vinitial = 0 so V=Vfinal-Vinitial V=Vfinal-0 V=Vfinal as acceleration is constant the final velocity will be the maximum velocity which will be given by the area under the graph. Vmax= 1/2 x 11 x 10= 55 m/s So the correct option is B.
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