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Required information

Problem $12\mathrm{.}128-$ Particle kinetics $-$ curvilinear motion, normal and tangential coordinates $-$ DEPENDENT MULTI$-$PART PROBLEM $-$ ASSIGN ALL PARTS

NOTE: This is a multi$-$part question. Once an answer is submitted, you will be unable to return to this part. A robot arm moves in the vertical plane so that the $0\mathrm{.}115-kg$ cylinder $P$ travels in a circle about point $B,$ which is not moving. Know that arm BP starts from rest in a horizontal position and that the speed of $P$ increases at a constant rate of $200m\frac{m}{s^2}.$

Problem $12\mathrm{.}128.$b $-$ Particle kinetics $-$ curvilinear motion, normal and tangential coordinates

Determine the force acting on the cylinder at $t=3s.$

The force acting on the cylinder is $$ N$.$