1. [-/20 Points] DETAILS SERPSE10 8.2.OP.005. MY NOTES ASK YOUR TEACHER PRACTICE ANC As shown in the figure, two packages of mass and are connected by an essentially massless, non-elastic string passing over a light, frictionless pulley. The package of mass m, is released from rest at height h above the table. Use the isolated system model to answer the following. (We assume m, > m2. Use any variable or symbol stated above along with the following as necessary: g.) mg (a) Determine the speed of m, just as m, hits the table. V = (b) Find the maximum height above the table to which my rises. hmax =2. [-/20 Points] DETAILS SERPSE10 8.2.P.003. A block of mass m = 7.10 kg is released from rest from point @ and slides on the frictionless track shown in the figure below. (Let h, = 6.00 m.) B) C ha 3.20 m 2.00 m (a) Determine the block's speed at points B and @. VB = m/s VO = m/s (b) Determine the net work done by the gravitational force on the block as it moves from point @ to point O. Need Help? Read It Watch It 3. [-/20 Points] DETAILS SERPSE10 8.3.OP.006. A box is given a push across a horizontal surface. The box has a mass m, the push gives it an initial speed of 3.30 m/s, and the coefficient of kinetic friction between the box and the surface is 0.120 (a) Use energy considerations to find the distance (in m) the box moves before it stops. m (b) What If? Determine the stopping distance (in m) for the box if its initial speed is doubled to 6.60 m/5.4. [-/20 Points] DETAILS SERPSE10 8.3.OP.008. A block of mass m = 2.00 kg is attached to a spring of force constant k = 505 N/m as shown in the figure below. The block is pulled to a position x; = 5.70 cm to the right of equilibrium and released from rest. k W m x=0 x= x; A (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 Need Help? Read It Watch It 5. [-/20 Points] DETAILS SERPSE10 8.5.OP.017. A 740-N Marine in basic training climbs a 8.5-m vertical rope at a constant speed in 9.25 s. What is his power output