2 ft -3 ft-
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The forked rod is used to move the smooth 3 −lb particle around the horizontal path in the shape of a limaçon, r=(2+cosθ) ft. If θ=(0.5t^2) rad, where tt is in seconds, determine the force which the rod exerts on the particle at the instant t=1 st=1 s. The fork and path contact the particle on only one side.
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- = Replace the three forces acting on the plate by a wrench. Suppose that FA {600i} N, FB = and Fc {250j} N. (Figure 1) = Part A {-400k} N, Determine the magnitude of the force of the wrench. Express your answer to three significant figures and include the appropriate units. uA F = Value Units Submit Request Answer Part B ? Determine the couple moment of the wrench. Express your answer to three significant figures and include the appropriate units. Enter positive value if the sense of direction of the couple moment is the same as that of the resultant force and negative value if the sense of direction of the couple moment is opposite to that of the resultant force. M = Value Submit Request Answer Part C Units ? Specify the point P(x, y) where the wrench intersects the plate. Enter the x and y coordinates of the point separated by a comma using three significant figures. x, y = ΜΕ ΑΣΦ vec Submit Request Answer ? BP2-32) Given two complete views, sketch in the missing view. PQuestion 4 A rocket projectile has the following characteristics: Initial mass of vehicle (including payload etc) 200 kg Mass of vehicle after rocket operation 130 kg Payload, nonpropulsive structure, etc 110 kg Rocket operating duration 3.0 sec Average specific impulse of propellant 240 sec Determine: Vehicle mass ratio propellant mass fraction propellant flow rate Thrust thrust to weight ratio acceleration of vehicle Effective exhaust velocity total impulse impulse to weight ratio
- 1The pedal and brake drum are illustrated in Figure Q2(b). The 160 mm radius brake drum is attached to a larger flywheel (not shown). The total mass moment of inertia of the flywheel and drum is 20 kg-m? and the coefficient of kinetic friction between the drum and the brake shoe is 0.35. The initial angular velocity of the flywheel is 360 rpm counterclockwise. If the system is to stop in 100 revolutions, determine the vertical force P that must be applied to the pedal C. (Hint: Draw a free-body diagram for the brake drum and pedal, separately and label all the forces)I need help in question 23, the answer for question 22 is 4.9kN
- Please do the last two questions (3 and 4)! Thank you in advance! A seesaw that weights 45lbs and its 5m long is balanced on the fulcrum in the center. 1- Two children are sitting on opposite sides of each other on the seesaw. One child weights 50lbs and is sitting 0.7m on the left end. Where should the other child sit in order to be balanced on the seesaw if they weigh 42lbs? 2- Now, a third child wants to sit on the seesaw and weighs 30lbs and is sitting 1.25m in front of them and is closer to the fulcrum on the right side. What are the CW and CCW moment of the seesaw now? What is the net moment and direction? 3- Then, a fourth child wants to play on the seesaw and is on the left side of the plank in order to bring the system to equilibrium. How much does the child weigh (Calculate the pounds of force needed in order for rebalance?) 4- Now the fourth child leaves the other three children sitting on the plank. If the three children are sitting in the same potions as they did in…(a) Find the volume of liquid contained in the flask when it is filled to the full mark. (b) Determine the elevation h of the half full mark.Find the volume of the following: a. 5 cube b. 10 of 8 pipe
