A body moving with uniform velocity 5u is subject to uniform retardation a. It returns to the
starting point after
(W) S

2 thoughts on “A body moving with uniform velocity 5u is subject to uniform retardation a. It returns to the<br />starting point after<br />(W) S”

1. Step-by-step explanation:

   I. By III equation of motion,

   v

   2

   =u

   2

   +2as

   (5v)

   2

   =u

   2

   +2as

   25v

   2

   −u

   2

   =2as

   24u

   2

   =s

   2a

   ∴ Distance travelled =S=

   a

   12u

   2

   II. v

   2

   =u

   2

   +2as

   v

   2

   =(5u)

   2

   +2(−a)(

   a

   12v

   2

   )

   v

   2

   =25v

   2

   −24u

   2

   v

   2

   =u

   2

   v=1u

   ⇒v=−u.

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2. Answer:

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