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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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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