A 5.50kg square block starts from rest and slides on a 30° wedge, which is supported by a horizontal surface. The weight of the wedge is 13.70kg. If we neglect the effect of friction, determine (a) the acceleration of the wedge and (b) the acceleration of the block in relation to the wedge.
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- corre hacia acả v constante rueda hacia ac An acrobat who is on the lateral surface of a cylinder, moves his legs and moves the cylinder with constant velocity. The cylinder is on a rough horizontal surface (with friction). If the coefficient of friction between the shoes and the cylinder is mu = 0.21 determine the force of friction %3D between the cylinder and the acrobat A. 128.6 N B. 100 N C. 12.8 N D. 200 N E. 342 N F. ON G. 9.8 N H. None of the above 1. 21 N J. 132 NA rocket sled decelerates at a rate of a =197 m/s^2. Its passenger has a mass of 73.5 kg. a. Calculate the horizontal component of the force the seat exerts against his body. b. Compare his weight by using a ratio. The horizontal component of the forice is how many times his weight. Calculate the magniture and direction of the total force the seat exerts against his body.A 29 kg child goes down a straight slide inclined 38° above horizontal. The child is acted on by his weight, the normal force from the slide, and kinetic friction. Part A Choose the correct free-body diagram of the child. fk 38° fk W 38° n n 38° W 38°
- A 76-kg crate (as shown in the figure) moves down along an incline with an initial speed of 7 meters per second. If the angle of inclination is 23.6° and coefficient of kinetic friction, uk = 0.36. determine the acceleration of the crate, Report your answers in 3 significant digits (no need to type the unit). Vo = 7 m/s EA 100 gram wooden block is placed on an inclined ramp and released from rest. The ramp is tilted at an angle of 25 degrees with thek horizontal. The coefficient of static friction between the block and the ramp is 0.300 and the coefficient of kinetic friction is 0.200. 25° 35. The acceleration of the block has a magnitude of c. 2.37 m/2. A. 4.14 m/ В. 2.18 т D. 1.01 m/ E. zero.Three vector forces with magnitudes of F₁-4.79N, F2=7.32N and F3-2.81N act on a particle of mass m = 7.73 kg as shown in Fig. Calculate the magnitude of the Net force acting on the particle. Given additional Data: 0₁-65° 03-22° Input your answer in N using 3 significant figures. F₁ 0₁ F₂ F3
- A block with mass m = 5 kg is pushed with a force of = 30 N. Please answer F1 the following: A. Draw a body diagram ( like I did in lecture) representing all forces acting on the block. B. If the coefficient of static friction is = 0.5, does the block move? ( μscompare with )FsF1 C. The block starts moving, if the coefficient of static friction is =0.2 find .μkFk D. Find the acceleration. E. After t = 2 s how far did the block move? (the initial position and initial Xi velocity are both zero)Vi F. What is the velocity after t = 3 s ?Two blocks are connected by a string. The inclination of the ramp is θ, while the masses of the blocks are m1 and m2. Friction is negligible. 1. Write an equation for the magnitude of the acceleration the two blocks experience. Give your equation in terms of m1, m2, θ, and the acceleration due to gravity g. 2. Write an equation for the tension in the string in terms of m1, the acceleration due to gravity g, and the acceleration of the two blocks a.Y 300 1Ь 100 lb 400 lb 200 Ib