. [-12 Points] DETAILS SERPSE10 8.2.0P.005. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER As shown in the figure, two packages of mass and are connected by an essentially massless, nonelastic string passing over a light, frictionless pulley. The package of mass m1 is released from rest at height h above the table. Use the isolated system model to answer the following. (We assume m1 > m2. Use any variable or symbol stated above along with the following as necessary: 9.) (a) Determine the speed of m2 just as m1 hits the table. v: (b) Find the maximum height above the table to which m2 rises. h max Need Help? 6. [-I2 Points] DETAILS SERPSE10 8.2.0P.004.Ml. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER Two objects are connected by a light string passing over a light, frictionless pulley as shown in the figure below. The object of mass m1 = 5.80 kg is released from rest at a height h = 3.20 m above the table. 'T A; [ Q) (a) Using the isolated system model, determine the speed of the object of mass m2 = 3.00 kg just as the 5.80kg object hits the table. E m (b) Find the maximum height above the table to which the 3.00-kg object rises. :i m Need Help? _' _ 7. [-13 Points] DETAILS SERPSE10 8.2.P.003. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER A block of mass m = 6.30 kg is released from rest from point and slides on the frictionless track shown in the figure below. (Let ha = 5.20 m.) (b) Determine the net work done by the gravitational force on the block as it moves from point to point . :11 Need Help? _ 8. [-l1 Points] DETAILS SERPSE10 8.2.P.006. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER The system shown in the figure below consists of a light, inextensible cord, light, frictionless pulleys, and blocks of equal mass. Notice that block B is attached to one of the pulleys. The system is initially held at rest so that the blocks are at the same height above the ground. The blocks are then released. Find the speed of block A at the moment the vertical separation of the blocks is h. (Use any variable or symbol stated above along with the following as necessary: 9.) VA: A Need Help? 9. [-12 Points] DETAILS SERPSE10 8.3.0P.007. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER A box is given a push across a horizontal surface. The box has a mass m, the push gives it an initial speed of vi, and the coefficient of kinetic friction between the box and the surface is \"k' (a) Use energy considerations to nd an expression for the distance the box moves before it stops. (Use any variable or symbol stated above along with the following as necessary: 9.) d= (b) What If? If the initial speed of the box is increased by a factor of 2, determine an expression for the new distance dnew the box slides in terms of the old distance 0'. Ed Need Help? 10. [-/2 Points] DETAILS 5ERPSE10 8.3.0P.008. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER A block of mass m = 2.00 kg is attached to a spring of force constant k = 475 Mm as shown in the figure below. The block is pulled to a position xi = 5.20 cm to the right of equilibrium and released from rest. I: |" Willi- - (a) Find the speed the block has as it passes through equilibrium if the horizontal surface is frictionless. :me (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 ,uk = 0.350. E me Need Help? 11. [-15 Points] DETAILS SERPSE10 8.3.P.007.M|. 0/6 Submissions Used MY NOTES ASK YOUR TEACHER A crate of mass 9.8 kg is pulled up a rough incline with an initial speed of 1.52 m/s. The pulling force is 98 N parallel to the incline, which makes an angle of 20.3 with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 4.96 m. (a) How much work is done by the gravitational force on the crate? J (b) Determine the increase in internal energy of the crateincline system owing to friction. J (c) How much work is done by the 98-N force on the crate? J (d) What is the change in kinetic energy of the crate? J (e) What is the speed of the crate after being pulled 4.96 m? m/s Need Help? _' _