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4-1.Newton's Laws of Motion
normal
With what minimum velocity should block be projected from left end $A$ towards end $B$ such that it reaches the other end $B$ of conveyer belt moving with constant velocity $v$. Friction coefficient between block and belt is $\mu$.
A
$\sqrt{\mu gL }$
B
$\sqrt{3 \mu g L}$
C
$\sqrt{2 \mu gL }$
D
$2 \sqrt{\mu g L}$
Solution
$\frac{1}{2} mv _0^2=\mu mgL$
$v _0=\sqrt{2 \mu gL }$
Standard 11
Physics
