7. Two objects are connectedM by a light string passing overa light, frictionless pulley asshown in Figure P8.7. Theobject of mass m, = 5.00 kgis released from rest at aheight h= 4.00 m above thetable. Using the isolated sys-tem model, (a) determinethe speed of the object of%3Dmass m23.00 kg just as%3Dthe 5.00-kg object hits thetable and (b) find the maxi-mum height above the tableto which the 3.00-kg objectrises.Figure P8.7Problems 7 and 8.nd by a light string passing 23. A 5.00-kg block is set intoM motion up an inclined planewith an initial speed of v; =8.00 m/s (Fig. P8.23). Theblock comes to rest after trav-d-%3Deling dplane, which is inclined atan angle of 0 = 30.0° to thehorizontal. For this motion,determine (a) the change in the block's kinetic energy,(b) the change in the potential energy of the block-Earth system, and (c) the friction force exerted on theblock (assumed to be constant). (d) What is the coef-ficient of kinetic friction?3.00 m along the%3D%3DFigure P8.2311 1Omass-

Answered: Image /qna-images/answer/8032db19-d838-4f79-97c1-13e5338089b5.jpg

7. Two objects are connected M by a light string passing over a light, frictionless pulley as shown in Figure P8.7. The object of mass m, = 5.00 kg is released from rest at a %3D height h = 4.00 m above the table. Using the isolated sys- tem model, (a) determine the speed of the object of mass m2 = 3.00 kg just as the 5.00-kg object hits the table and (b) find the maxi- mum height above the table to which the 3.00-kg object rises. Figure P8.7 Problems 7 and 8. light string passin

7. Two objects are connected M by a light string passing over a light, frictionless pulley as shown in Figure P8.7. The object of mass m, = 5.00 kg is released from rest at a %3D height h = 4.00 m above the table. Using the isolated sys- tem model, (a) determine the speed of the object of mass m2 = 3.00 kg just as the 5.00-kg object hits the table and (b) find the maxi- mum height above the table to which the 3.00-kg object rises. Figure P8.7 Problems 7 and 8. light string passin

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Two objects (m, = 4.50 kg and m, = 3.30 kg) are connected by a light string passing over a light, frictionless pulley as in the figure below. The 4.50-kg object is released from rest at a point h = 4.00 m above the table. (a) Determine the speed of each object when the two pass each other. m/s (b) Determine the speed of each object at the moment the 4.50-kg object hits the table. m/s (c) How much higher does the 3.30-kg object travel after the 4.50-kg object hits the table? Need Help? Read It
A 2kg mortar shell in a fireworks display rises from the ground to a height at which it is moving directly upward at 10 m/s. At this instant, the shell explodes and splits into two pieces. A 0.5 kg piece heads off northward and exactly horizontally at a speed of 20 m/s. What is the velocity (magnitude and direction) of the second piece? What is the change in kinetic energy during the explosion?
A railroad cart with a mass of m₁ = 12.6 t is at rest at the top of an h = 10.3 m high hump yard hill. m m₂ h After it is pushed very slowly over the edge, it starts to roll down. At the bottom it hits another cart originally at rest with a mass of m₂ = 18.6 t. The bumper mechanism locks the two carts together. What is the final common speed of the two carts? (Neglect losses due to rolling friction of the carts. The letter t stands for metric ton in the SI system.)
In the middle of a race, three runners have the following speeds and masses. A. 54 kg, 4.6 m/s B. 65 kg, 4.1 m/s C. 85 kg, 2.6 m/s Order the runners from largest linear momentum to smallest linear momentum. (Use only ' or "-" symbols. Do not include any parentheses around the letters or symbols.)
Mike then takes his now 1175 kg car and crashes it at 50 m/s into the back of a 1600 kg Jeep traveling at 10 m/s. They roll off together going 18 m/s. How much work was done by the crumple zone of Mike’s car? Just a short simple answer will suffice.
A remote controlled toy car of mass 3.8 kg is moving with a velocity of 8.7 m/s along x-axis makes a complete inelastic collission with another identical car at rest (stick together and move with same velocity along the same direction). What is the change in the kinetic energy (Joules) of the system? a. Can not be calculated b. 71.91 c. 143.81 d. 35.95
A 8000-N car is traveling at 50 km/h. It strikes a 12000-N car, which is stationary. The two cars stick together. Their common final speed (in m/s) is: 8.9 a O 7.8 .b O 6.7 4.5 .d O 5.6 .e O
At t= 0st= 0s you launch a lump of sticky clay with mass m1= 13kgm1= 13kg and velocity 7m/s i^7m/s i^ directly toward a block of mass m2= 31kgm2= 31kg that is sliding directly toward the clay with a velocity of −9m/s i^−9m/s i^ . The clay sticks to the block completely. How much kinetic energy was lost during the collision?
5. Two blocks of masses mand 3m QIC are placed on a frictionless, hor- V izontal surface. A light spring is attached to the more mas- sive block, and the blocks are Зт Before a pushed together with the spring between them (Fig. P9.5). A cord initially holding the blocks together is burned; after that happens, the block of mass 3m moves to the right with a speed of 2.00 m/s. (a) What is the velocity of the block of mass m? (b) Find the system's original elastic potential energy, taking 2.00 m/s Зт After Figure P9.5 m = 0.350 kg. (c) Is the original energy in the spring or in the cord? (d) Explain your answer to part (c). (e) Is the momentum of the system conserved in the bursting-apart process? Explain how that is possible considering (f) there are large forces acting and (g) there is no motion before- hand and plenty of motion afterward?
Two objects are connected M by a light string passing over a light, frictionless pulley as shown in Figure P8.7. The object of mass m = 5.00 kg is released from rest at a height h = 4.00 m above the table. Using the isolated sys- tem model, (a) determine the speed of the object of 3.00 kg just as the 5.00-kg object hits the table and (b) find the maxi- mum height above the table to which the 3.00-kg object %3D B88 mass Mg %3D Figure P8.7 Problems 7 and 8. rises.
erli/Downloads/20210510091148742.pdf 3. A 12-g bullet moving horizontally strikes and remains in a 3.0-kg block initially at rest on the edge of a table. The block, which is initially 80 cm above the floor, strikes the floor a horizontal distance of 120 cm from its initial position. What was the initial speed of the bullet? Pa Cocunaht Cangage Learning, Powered by Cognero.
A man weighing 680 N and a woman weighing 420 N have the same momentum. What is the ratio of the man's kinetic energy Km to that of the woman Kw?