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Comprehension # 6 A 1 kg block is give...

Comprehension # 6
A `1 kg` block is given a velocity of `15 m//s` towards right over a very long rough plank of mass `2 kg` as shown in figure.

If coeficient of friction between the two blocks is equal to `0.4`, then magnitude of linitial slope of `p_(1)` versus t and `p_(2)` versus t (in SI unit) will be :-

A

4 and 2

B

2 and 4

C

4 and 4

D

2 and 2

Text Solution

Verified by Experts

The correct Answer is:
C
`(dp)/(dt) = f_(ext)`
For blocks of `1 kg`
friction `f_(r) = mumg = 0.4 xx 1 xx 10 4 N`
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