InterviewSolution
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InterviewSolution
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As shown below AB represents an infinite wall tangential to a horizontal semi-circular track. O is a point source of light on the ground at the centre of the circle. A block moves along the circular track with a speed `v` starting from the point where the wall touches the circle. If the velocity and acceleration of shadow along the length of the wall is respectively `V` and a, then : A. `V=vcos((vt)/(R))`B. `V=v sec^(2)((vt)/(R))`C. `a=((v^(2))/(R))sec^(2)((vt)/(R))tan((vt)/(R))`D. `a=((2v^(2))/(R))sec^(2)((vt)/(R))tan((vt)/(R))` |
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Answer» Correct Answer - b,d |
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