A 37-kg crate is placed on an inclined ramp. When the angle the ramp makes with the horizontal is increased to 23°, the crate begins to slide downward. What is the coefficient of static friction between the crate and the ramp? At what angle does the crate begin to slide if its mass is doubled?
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A 37-kg crate is placed on an inclined ramp. When the angle the ramp makes with the horizontal is increased to 23°, the crate begins to slide downward. What is the coefficient of static friction between the crate and the ramp? At what angle does the crate begin to slide if its mass is doubled?
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- [5]: #input some values. Do not change this cell speedc/2.0 distance = c * 3600.0 * 24.0 * 365.25 * 10 print(dilation (speed)) print(compute time(speed, distance)) print(total_dilated(speed, distance)) array_v = np.arange(0,c,10000) array_dnp.arange(0, distance * 10, distance / 10) 149896.0 None + None 149896.0 None [6]: # Plot the difference between the time elapsed on Earth and in Space, as a function of speed, for the distance "distance" plt.plot(????) # Do the same, but as a function of the distance, for the speed "speed" 149896.0 ↓曱Problem 3: A 38.8-kg crate is being pushed at a constant speed by a force of 311 N at an angle of 29 degrees below the horizontal, as shown. Part (a) What is the coefficient of kinetic friction between the crate and the floor? Numeric : A numeric value is expected and not an expression. Uk = Part (b) If the force is pulling at 29 degrees above the horizontal instead of below, as shown, what is the acceleration of the crate in m/s2, assuming the coefficient of friction is the same as in the previous part? Numeric : A numeric value is expected and not an expression. a =A 40 N box is resting on a table when a 20 N force is applied to it horizontally. The coefficients of static and kinetic friction are 0.3 and 0.1, respectively. Which of the following best describes the resulting motion of the box? The motion of the box cannot be determined with the given information. The box accelerates in the direction of the applied force. The box remains at rest. The box moves with a constant velocity in the direction of the applied force.
- Current Attempt in Progress A flatbed truck is carrying a crate up a hill of angle of inclination 8 = 8.90°, as the figure illustrates. The coefficient of static friction between the truck bed and the crate is μ = 0.380. Find the maximum acceleration that the truck can attain before the crate begins to slip backward relative to the truck. 0 W = mg Number i 18 1 (a) 7MAX +y mg sin e W = mg Units MAX mg cos e 0 +x (b) Free-body diagram of the crate Qu Nur with QL ML Q Οξξ Nu C N WA contestant in a winter games event pushes a 59.0 kg block of ice across a frozen lake with a rope over his shoulder as shown in the figure. The coefficient of static friction is 0.1 and the coefficient of the the kinetic friction is 0.03. What is the minimum force (in N) he must exert to get the block moving?The 118-lb force P is applied to the 250-lb crate, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the crate. The friction force is positive if to the right, negative if to the left. Assume ??= 0.48, ??= 0.38.