A force acts on a block as shown in figure. Find time when block loses contact with surface. P (...

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A force acts on a block as shown in figure. Find time when block loses contact with surface.
P
(1) \( \mathrm{t}=\frac{25}{3} \mathrm{~s} \)
(2) \( t=\frac{50}{3} \mathrm{~s} \)
(3) \( t=\frac{100}{3} \mathrm{~s} \)
(4) \( t=50 \mathrm{~s} \)
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