An object with mass m is attached to a string with initial length R, and moves on a frictionless table in a circular orbit with center C as shown in the figure. The string is also attached to the center, but its length is adjustable during the motion. The object initially moves with velocity v and angular velocity w Top View Given: m - 375g.v=x m/s, R = 50 cm If the length of the string is shortened from R to r- R/2 while the mass is moving, the new period of the object will be rad/s (choose
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- Two masses, mA = 30.0 kg and mg = 38.0 kg are connected by a rope that hangs over a pulley (as in the figure(Figure 1)). The pulley is a uniform cylinder of radius R = 0.319 m and mass 3.4 kg. Initially, mA is on the ground and mp rests 2.5 m above the ground. Figure MA R mg 4 25m < 1 of 1 Part A If the system is now released, use conservation of energy to determine the speed of mg just before it strikes the ground. Assume the pulley is frictionless. Express your answer using three significant figures and include the appropriate units. V= Value Submit μA Provide Feedback Request Answer Units Ed ?Figure P9.75 shows a 100 g puck revolving at 100 rpm on a 20-cm-radius circle on a frictionless table. A string attached to the puck passes through a hole in the middle of the table. The end of the string below the table is then slowly pulled down until the puck is revolving in a 10-cm-radius circle. How many revolutions per minute does the puck make at this new radius?A 4.00-kg mass and a 3.00-kg mass are attached to opposite ends of a thin 39.2 cm-long horizontal rod (see the figure (Figure 1)). The system is rotating at angular speed w = 6.00 rad/s about a vertical axle at the center of the rod. v Correct Part C Determine the kinetic energy K of the system assuming that the axle passes through the CM of the system. να ΑΣφ K = J Submit Previous Answers Request Answer Figure 1 of 1 X Incorrect; Try Again; 5 attempts remaining 3.00 kg Part D 4,00 kg Determine the net force on each mass assuming that the axle passes through the CM of the system Enter your answers numerically separated by a comma. Masaūstü Aramak için buraya yazın delete prt sc esc 14 f5 16 f7 19 13) & 5 /2 8 1 3 23 6 7 13+
- A plane with a wingspan of d = 16 m loses control in flight and begins to spiral in a circle around the cockpit while in a vertical dive. It completes one rotation every t = 3.1 s.Two blocks with masses mj and m, are connected by a light string that passes over a pulley with rotational inertia I and radius R. The system is released from rest. Find the speed of the first block with mass mj, when the second block with mass m, has descended a distance h. (There is no friction) mi m2 (m1+m2)IR² gh O a. V = (m1+m2)gh (I/R²) V = O C. M2gh V = m+M2+(I/R²) IR gh O d. V = (mi+m2) е. V = b.A roller coaster includes a long ramp that leads into a Loop-D-Loop. A carriage starts from rest at the top of the ramp and rolls downward (the system is frictionless) The value of gravitational acceleration is 4.8m/s, The mass of the carriage is 80kg, The initial height of the carriage is 5, and the radius of the Loop-D-Loop 10m 1. a) Draw a photo of the carriage at the top of the ramp, and another at the top of the Loop. b)Calculate the velocity of the carriage at the top of the Loop-D-Loop?
- can you do (c) and (d)?A tennis ball, starting from rest, rolls down the hill in the figure. At the end of the hill the ball becomes airborne, leaving at an angle of 35° with respect to the ground. Treat the ball as a thin-walled spherical shell, and determine the range x. Number i eTextbook and Media Save for Later 12 W S #3 1.8 m 135 Units Attempts: 0 of 3 used Submit Answer APR 2 tv I all A 80 F3 a F4 E $ 14 95 F5 MacBook Air % 50 6 C F6 27 & < F7 R T Y U D F G H * 00 8 DII F8 D F9 ( 9 O A F10 F11 t O { P [ J K L X C V B N M H command ? H command optionQuestion 5 unts Given two vectors: M = -3î + 6j – 5k and N = -2î + 3j + k ... The cross product of MxN equals Choose the best answer. A -9i -7j +3k В 21i +13j +3k 9i +7j -3k 13 E No Answer
- What is the speed of a point on the rim?A puck of mass m = 1.10 kg slides in a circle of radius r = 19.0 cm on a frictionless table while attached to a hanging cylinder of mass M = 4.10 kg by a cord through a hole in the table. What speed keeps the cylinder at rest?1.lf a spherical body is dropped from the top of a slope, does the center of mass accelerate? If the object is replaced by a box of the same mass as the sphere above, what is its kinetic energy relative to the sphere? 2. The pulley has the form of a circular disk, draw a figure and calculate: a) the acceleration of the motion of the body m and the tension in the string T, b) the object m moving from rest h = 0.5m and then touching %3D the furnace spring causes the spring to compress an x and pause. Calculate x knowing K=2N/m