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- Drop-load (I)This exercise is part of a series of problems aimed at modelling a situation by progressively refining our model to consider more and more parameters. This progressive approach is very close to what professional scientists do! Context We want to lower a suspended load in a controlled way so that it hits the ground with a speed whose modulus is not too great. To do this, the suspended load (B) is connected by a rope passing through a pulley to another mass (A), which can move on a horizontal surface. Information The masses of the charges A and B are known.The pulley is a ring of mass mp and radius R that can rotate without friction.The surface on which mass A is placed is horizontal.There is no friction between mass A and the surface on which it is placed.The string attached to mass A is perfectly parallel to the surface on which the mass rests. SchematizationDraw a diagram of each object that interests us. Draw x- and y-axes for each object. Draw and name each force…How do a unicycle and a twoaxle car react differently to road bumps?What is the difference between a passive and an active impact force during gait measured through a ground-embedded force plate?
- Question from Subject Mechanics of Deformable Solids.What trigonometric identity may be used to summarize an equation for calculating tension force (the long equation you'll use before replacing the values)? What do you think the role of mass is in determining the net acceleration of an item rolling down an incline? Friction is a significant factor. Why is the normal force no longer equal to the weight of all things on an incline?February 7, 2021 H.W MECHANICS PHrsics Example 5.13 Friction in horizontal motion You want to move a 500-N crate across a level floor. To start the crate moving, you have to pull with a 230-N horizontal force. Once the crate "breaks loose" and starts to move, you can keep it moving at constant velocity with only 200 N. What are the coeffi- cients of static and kinetic friction? Example 5.15 Minimizing kinetic friction In Example 5.13, suppose you move the crate by pulling upward on the rope at an angle of 30 above the horizontal. How hard must you pull to keep it moving with constant velocity? Assume that H = 0.40. Example 5.16 Toboggan ride with friction I Let's go back to the toboggan we studied in Example 5.10. The wax has worn off, so there is now a nonzero coefficient of kinetic friction 4. The slope has just the right angle to make the toboggan slide with constant velocity. Find this angle in terms of w and Hg. Example 5.17 Toboggan ride with friction II The same toboggan with…
- Determine the body side slip angle of a vehicle cornering under steady state conditions on a 66m diameter skid pad given the data below; Parameter Value Units Mass 1,298 kg Wheelbase 2.82 Forward weight bias 54 % Forward speed 11.9 m/s Steer angle (road wheel) 0.08 rad Front and Rear axle cornering stiffness values are identical. Provide your answer in radians to 3 decimal places.1) In term of ingress and egress, suggest and elaborate from your knowledge of Automotive styling the type of mannequin to use for a two-door car 2) Discuss the comfort level of the front passenger and rear passenger during ingress and egress using Albert Schneider Standards for the car in PART (1).5) Calculations for the red dog food can rolling down the slope in the Rube Goldberg design are as follows (we will name it Step 1): Step 1 (calculations are given): Coefficient of friction → μ = 0.14 Mass of the object → m = 368 gm = 0.368kg Initial height of the object (red can on top of books) → h=8.89, cm = 0.0889 m Slope of the file folder → 0= 14° Travelling Distance by the object = 11.5 inch = 0.292 m And length that the object will travel = h/sin 0 = 0.0889/ sin14° = 0.367 m So, the radius of the object → R = 0.367 -0.292 = 0.075 m Initial Velocity of red can → u = 0 Velocity and Force Calculations for Step 1: -From total mechanical energy conservation: → Initial mechanical energy = final mechanical energy → mg - In case of pure rolling, the velocity of the center of mass: →V=Roo= 0.075 x 14.28 = 1.07 m/s. -Hence the change in force acting on the object for the travel: →F=mgsine = 0.368 x 9.81 × sin14° =0.89 N Step 2: The Selective Step (Step 2) in this design and for the…
- 3 A drop test is a conceptually simple method to measure adhesion force. Consider the following scenario: a number of particles of different sizes adhere to a plate facing down, the plate is allowed to free-fall from a height, and it is stopped abruptly at the bottom of the test rig, dislodging some of the particles. Use m to denote particle mass, u impact speed, t stopping time and f adhesion force, and ignoring effect of particle weight and influence of air, use the concepts of momentum and momentum conservation to answer the following questions: (a) Write expression of momentum of a particle of known mass (m) and speed (u).A girl of 40 kg climbs up a uniform ladder that is 15 m in length. The ladder has a 3. mass of 10 kg. One end of the ladder is set against a smooth vertical wall and the other end is on the ground 7.5 m away from the base of the wall. The ladder remains static as the girl climbs up. (a) (b) to the ladder?] (c) far up along the ladder can the girl climb before it starts to slip? Draw a free body diagram for the ladder. Can the floor be frictionless? Explain your answer [Hint: can the wall exert zero force If it is known that the static friction between the floor and the ladder is 0.15, howMechanical Engineering Statics of Rigid Bodies PLEASE. With detailed solution please, thank you.