16.2 A block of mass 10 kg is subjected to a force F(t) at an angle 30° from the horizontal that isat a constant 12 N for 3 seconds and is suddenly increased to 18 N afterwards. A constant 1 N forceacts on the block as shown as well. The static and kinetic friction coefficients between the blockand the ground is 0.15 and 0.10, respectively. Determine the magnitude and direction of thevelocity of the block after 5 seconds.Ms=0.15Mk = 0.10F(t) [N]F(t)181 N30°m = 10 kg12t [s]3

Step 1:Let's list all the forces acting on the block.The force F(t) can be written as a vector sum…

Answered: 16.2 A block of mass 10 kg is subjected…

International Edition---engineering Mechanics: Statics, 4th Edition

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ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

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Chapter7: Dry Friction

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Problem 7.78P: The figure shows a steel bar being processed by a rolling mill. Given that P=80kN and r =0.016,...

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