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CBSE Class 12-science Answered

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Asked by jain.pradeep | 24 May, 2019, 11:19: PM
answered-by-expert Expert Answer
(8) acceleration  g×sinθ is constant.  - graph (A)
 
(9) upward displacement = u×t - (1/2) g sinθ t
      downward displacement =  u×t + (1/2) g sinθ t2   :- quadratic function of time t . When it reaches the maximum height, 
     speed = ds/dt, which is slope of this curve becomes zero  - graph (E)
 
(10) upward speed of block , v = u - (g sinθ t)
        downward speed of block , v = u + (g sinθ t)   :  graph (C)
Answered by Thiyagarajan K | 25 May, 2019, 10:47: PM
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