A 340N force parallel to an inclined plane is required to just move a body of mass 50kg up the plane which is inclined at 15 above the horizontal. Calculate the coefficient of friction and the force parallel to the plane required to drag the body down the plane at constant speed.[15 marks]
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A 340N force parallel to an inclined plane is required to just move a body of mass 50kg up
the plane which is inclined at 15 above the horizontal. Calculate the coefficient of friction and
the force parallel to the plane required to drag the body down the plane at constant speed.
[15 marks]
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- Calculate the horizontal force P required to push the 85-lb lawn mower at constant speed. The center of gravity of the mower is at G, and the coefficients of rolling resistance are 0.12 for the front wheels and 0.18 for the rear wheels.The block of weight W is pulled by the force P inclined at the angle to the horizontal. Find the smallest force P and the corresponding angle that would cause impending sliding of the block. The angle of static friction between the block and the ground is s.Required information A photograph of the NASA Apollo 16 Lunar Module (abbreviated by NASA as the LM) is shown on the surface of the Moon. Such spacecraft made six Moon landings during 1969 - 72. A simplified model for one of the four landing gear assemblies of the LM is shown. Assume the weight of the LM is uniformly supported by all four landing gear assemblies, and neglect friction between the landing gear and the surface of the Moon. NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to this part. A (2.5, 2.5, -2.2) m B (1.5, 1.5,0) m C(2, 1,-1.2) m D(1,2,-1.2) m Z B D If the LM has 14950 kg mass and rests on the surface of the Moon where acceleration due to gravity is 1.62 m/s2, determine the forces supported by members AB, AC, and AD. (Round the final answers to four decimal places. Include a minus sign if necessary.) The forces supported by members AB, AC, and AD are as follows: TAB 10621 N TAC= 2903 N TAD 6032 N
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- The diagram below represents an elevator used to lift concrete blocks to upper levels on a construction site. The belt travels at a velocity of 0.9 m/s and is inclined at 26° above the horizontal plane. A yolluy € ф 300 mm 008 to NOT TO SCALE alaups 1909 provided to come Calculate the frictional force and the coefficient of friction between each block and the belt. Each block weighs 16.5 kg. Frictional Force: N Coefficient of Friction: ..........Example 1: A 200 Ib block is at rest on a 30° incline. The coefficient of friction between the block and the incline is 0.20. Compute the value of a horizontal force P that will cause motion to impend up the plane. Given: e = 30° W = 200 pounds (motion) 200# Unknowns: N, P, F 300 30 NConsider a 14.5 kg rectangular block of length 0.40 m attached to a spring with a spring constant of 30.5 N/m. The coefficient of static friction between this block and the surface is 0.310.