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Block 1 (20 kg) is pulled by a rope from left to right up a ramp which is inclined 45 degrees from the horizontal. The rope pulls on block 1 with a force of 460 N parallel to the surface of the inclined plane. T coefficient of kinetic friction between the block and the surface equals 0.8. (use 9 = 10 m/sZ) On a sheet of paper, draw the free body diagram for block 1 using the two-subscript notation from class. Assume that the x-axis is parallel to the incline and positive in the direction up the incline. After comple the free body diagram, enter below each force and its x & y-components. FORCES on BLOCK 1 Weight force on block 1 by Earth W1E=[:i+:]jN Tension force on block 1 by Rope Normal force on block 1 by Surface N15 = |:] i + :11 N Frictional force on block 1 by Surface '15 = |:] i + :11 N SubmitAnswer Tries 0/2 nommenltnn rm , What is the acceleration a of block 1? a = C] i + DJ- m,.2 Tries o/z Up Left - Right Down A spinning disk is rotating at a rate of 5 rad/s in the negative clock-wise direction. If the disk is subjected to an angular acceleration in the counterclock-wise direction at a rate of 4 rad/s2, Find the whe angular velocity in rad/s after 2 s. O -13 rad/s. 8 rad/s. 3 rad/s. O 13 rad/s. O -8 rad/s. Submit Answer Tries 0/3A kid runs towards the edge of a merry-go-round that is not rotating and jumps on. The merry-go-round then rotates with a constant angular velocity 0). Assume that the kid has a mass of 20 kg and is initially running at a speed of 2 m/s tangent to the edge of the merry-goround. The merryvgo-round is a uniform disk with a mass of 120 kg and a radius of 2 m. Assume that it rotates without friction. What is the final angular velocity aw (in radians/s) of the merry-go-round (with the kid riding)? l: anew\" as\"... 'r_:__ Am An earth-like planet has a mass of 6.00x1024 kg and a radius of 9000 km. What is the gravitational field, 9, on the surface of this planet? (We can simplify the Gravitational Constant G to 6.7x10-11 Nm2/kg) N/kg Submit Answer Tries 0/2 What is the force of gravity on an 49 kg alien standing on the surface of this planet? N Submit Answer Tries 0/2An earth-like planet has a mass of 6.00x1024 kg and a radius of 4000 km. A satellite of mass 77 kg is orbiting the planet at a distance of 6000 km above the surface. What is the magnitufe of the gravitational fort exerted on the satellite by the planet? (We can simplify the Gravitational Constant G to 6.7)(10'11 Nmz/kg) : N Tries o/2 What is the magnitude of the force exerted on the planet by the satellite? : N Submit Answer Tries 0/2 An earth-like planet with a mass of 5.00x1024 kg has a space station of mass 4.30x104 kg orbiting it at a distance of 5.00x10S km. What is the gravitational potential energy between the space station and the planet? (We can simplify the Gravitational Constant G to 6.7x10'11 NmZ/kg) J Submit Answer Tries 0/2 You are trapped on an earth-like planet with a mass of 4.00x1024 kg and a radius of 8000 km. You were able to build a cannon capable of launching a human. What velocity will you need to escape the planet? (W can simplify the Gravitational Constant G to 6.7x10-11 Nm2/kg2) m/s Submit Answer Tries 0/2An asteroid starts at rest infinitely far from Earth. The asteroid has a mass of 5.00x 104 kg. G=6.67x10-11 Nm2/kg2 MAsteroid= 5.00x104 kg MEarth =5.97x 1024 kg REarth= 6.37x106 m What is the change in gravitational potential energy between the asteroid's starting point and when it hits the earth's surface? Does it gain or lose potential energy? -3. 125 The potential energy = -G M1M2/r You want the difference between the initial and final potential energy. When r=co, the potential energy goes to zero! Submit Answer Incorrect. Tries 1/2 Previous Tries What is the final kinetic energy of the asteroid when it hits the earth's surface? Submit Answer Tries 0/2 What is the final velocity of the asteroid when it hits the earth's surface? m/s Submit Answer Tries 0/2 Post Discussion