SERPSE1D 8.2.0P.002. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER l A block of mass 0.248 kg is placed on top ofa light, vertical spring of force constant 4 E75 N/m and pushed downward so that the spring is compressed by 0.092 m. After the block is released from rest, it travels upward and then leaves the spring. To what maximum height above the point of release does it rise? (Round your answer to two deCimal places.) -:m Need Help? _' 1. [f1 Points] 2. [f1 Points] SERPSE1O 8.2.0P.004.M|. ASK YOURTEACHER PRACTICE ANOTHER Two objects are connected by a light string passing over a light, frictionless pulley as shown in the figure below The object of mass m:1 = 4.20 kg is released from rest at a height h = 5.00 m above the table. (a) Using the isolated system model, determine the speed of the DbJECt of mass m2 = 3.00 kg just as the 4.207kg object hits the table. (b) Find the maximum height above the table to which the BLDGkg object rises. :m 3. [-/1 Points] DETAILS SERPSE10 8.2.P.005. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A light, rigid rod is 53.2 cm long. Its top end is pivoted on a frictionless horizontal axle. The rod hangs straight down at rest with a small, massive ball attached to its bottom end. You strike the ball, suddenly giving it a horizontal velocity so that it swings around in a full circle. What minimum speed at the bottom is required to make the ball go over the top of the circle? m/s Need Help? Read It 4. [-/1 Points] DETAILS SERPSE10 8.3.OP.006. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A carton is given a push across a horizontal surface. The carton has a mass m, the push gives it an initial speed of 4.00 m/s, and the coefficient of kinetic friction between the carton and the surface is 0.125. (a) Use energy considerations to find the distance (in m) the carton moves before it stops. m (b) What If? Determine the stopping distance (in m) for the carton if its initial speed is doubled to 8.00 m/s. m Need Help? Read It 5. [-/1 Points] DETAILS SERPSE10 8.3.OP.007. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A container is given a push across a horizontal surface. The container has a mass m, the push gives it an initial speed of vo, and the coefficient of kinetic friction between the container and the surface is "k'A container is given a push across a horizontal surface. The container has a mass m, the push gives it an initial speed of v , and the coefficient of kinetic friction between the container and the surface is "k' (a) Use energy considerations to find an expression for the distance the container moves before it stops. (Use any variable or symbol stated above along with the following as necessary: g.) (b) What If? If the initial speed of the container is increased by a factor of 3, determine an expression for the new distance drew the box slides in terms of the old distance d. d Need Help? Read It 6. [-/1 Points] DETAILS SERPSE10 8.3.OP.008. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER A block of mass m = 2.00 kg is attached to a spring of force constant k = 575 N/m as shown in the figure below. The block is pulled to a position x; = 4.25 cm to the right of equilibrium and released from rest. *=0 *= X; (a) Find the speed the block has as it passes through equilibrium if the horizontal surface is frictionless. m/s (b) Find the speed the block has as it passes through equilibrium (for the first time) if the coefficient of friction between block and surface is u = 0.350. m/s