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A long plank begins to move at t=0 and a...

A long plank begins to move at `t=0` and accelerates along a straight track wit a speed given by `v=2t^(2)` for `0le t le 2` (where `v` is in m/s and `t` is in second). After 2 sec the plane continues to move at the constant speed acquired. A small initially at rest on the plank begins to slip at `t=1` sec and stops sliding at `t=3` sec. If the coefficient of static friction and kinetic friction between the plank and the block is `0.s` and `0.k` (where `s` and `k` are digits) respectively, find `s+k` (take `g=10m//s^(2)`)

Text Solution

Verified by Experts

The correct Answer is:
`mu_(s) = 0.4 , mu_(k) = 0.3`
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