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ADNAN MUHAMMED

Grade 12,

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A particle moving in a straight line with uniform retardation leaves a point O at time t = 0 and comes to instantaneous rest at D on the way to D, the particle passes points A, B, C at time T, 2T and 4T respectively given that AB =BC = L.find the length CD and OA

A particle moving in a straight line with uniform retardation leaves a point O at time t = 0 and comes to instantaneous rest at D on the way to D, the particle passes points A, B, C at time T, 2T and 4T respectively given that AB =BC = L.find the length CD and OA 

Grade:9

1 Answers

Saurabh Koranglekar
askIITians Faculty 10335 Points
3 years ago
Dear student

OA = ut – (aT^2)/2

OB = ut – (a(2T)^2)/2

OC = ut – (a(3T)^2)/2

OD = ut – (a(4T)^2)/2

OB – OA = OC – OB

OD = u^2 / 2a

time req to travel OA = t
OB =2t
OC =4t

Thus required expression can be evaluated

Regards

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