F15-11. Blocks A and B have a mass of 15 kg and 10 kg, respectively. If A is stationary and B has a velocity of 15 m/s just before collision, and the blocks couple together after impact, determine the maximum compression of the spring. 15 m/s k = 10 kN/m

Q13. As shown in the image below, the 54 kg-crate is initially at rest, and at a distance d= 6.0 m from the top of the spring. Then it slides down the inclined plane. If the coefficient of kinetic friction between the crate and the inclined plane is uk = 0.22, determine the compression of the spring, x, when the crate momentarily stops (as the spring reaches maximum compression). The spring has spring constant k = 1.3 kN/m and initially the spring is unstretched. Please pay attention: the numbers may change since they are randomized. Your answer must include 2 places after the decimal point, and proper SI unit. Take g = 9.81 m/s². d k 45° Your Answer: Answer units

The 10-lb block has a speed of 4 ft/s when the force of F= (8t^2) lbf is applied.Determine the velocity of the block when t= 2 s. The coefficient of kinetic friction at the surfaceis uk = 0.2

4. The block of 2 kg travels down the slope from rest from the position shown and strikes the spring of constant k = 2 kN/m. Determine the maximum deformation of the spring after it is struck by the block. Also determine the location of the block relative to the free end of the spring when it stops after being bounced back by the spring. The coefficient of kinetic friction between the block and surfaces is μ = 0.25. www. 2 m 2 m 4 3