Description
For understanding interpretation of velocity-time graph.
Presentation Transcript
Velovity-time Graph : Velovity-time Graph What is acceleration during first 5 seconds ?
What is acceleration during last 4 seconds ?
What is displacements in 5 s and 9 s ?
What is average velocity of the moving body during 9 s ?
Answers : Answers Acceleration during first 5 s = 40/5= 8 m/s^2
2. Acceleration during last 4 s = (0-40)/4 = - 10 m/s^2
Displacement in 5 s = (1/2)(5 s)(40 m/s) = 100 m
Displacement in 9 s = (1/2)(9 s)(40 m/s) = 180 m
4. Average velocity = 180/9 = 20 m/s
Suresh K12GCSE Physics Maths / O-Level Physics Maths / K-12 Physics
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