muscles 1. State the class of lever of each device below. load force fulcrum Туре2 Туре? Туре? Туре?
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- All second-class levers produce a mechanical advantage greater than 1.0 and all thirdclass levers produce a mechanical advantageless than 1.0. Explain whyWhat is the ideal mechanical advantage of a lever with an input distance of 14 m and an output distance of 4 m? Show all work and units for full credit.(a) Define mechanical advantage and disadvantage. (b) Give an example of a lever in the body that only works at a mechanical disadvantage.
- Define lever, and explain how a lever operating at a mechanical advantage differs from one operating at a mechanical disadvantage.In a Proell governor, each ball weighs 2.5 kg; length of each of the main four arms in 20cms, the extended arm is 8 cm long. The pin joints of the main arm are 4 cm from the axis of the governor. For the sleeve to be on its bottom stop the distance between the top and bottom hinge points of the main arms is 30 cm and then the extended arm is vertical. Find the weight of central load when the sleeve just leaves the bottom stop at 150 rpm. What will be the speed of the governor after the sleeve has been raised to 4 cm?In a Proell governor, each ball weighs 2.5 kg; length of each of the main four arms in 20cms, the extended arm is 8 cm long. The pin joints of the main arm are 4 cm from the axis of the governor. For the sleeve to be on its bottom stop the distance between the top and bottom hinge points of the main arms is 30 cm and then the extended arm is vertical. Find the weight of central load when the sleeve just leaves the bottom stop at 150 rpm. What will be the speed of the governor after the sleeve has been raised to 4 cm? (b) What is meant by the term, stability of a governor? Derive the necessary conditions of stability for a centrifugal governor
- Determine for what least value of the pulling force P and angle θ, in the system as shown below, to cause the motion of the blocks to impend from left to right ? Assume the pulley to be smooth and coefficient of friction between the mating surfaces be 0.20. The weight of block A is 90 N while weight of block b is 60 N. OPTIONS:(MULTI CORRECT(MAY BE)): 1.Angle θ is around 6 Degrees 2.Force P is approximately 72 N 3.Angle θ is around 15 Degrees 4.Angle θ is around 11 Degrees 5.Angle θ is around 17 Degrees 6.Force P is approximately 81 N 7.Force P is approximately 102 N 8.Angle θ is around 8 Degree 9.Force P is approximately 94 NNeed help question 3. please 1-DESIGN CHANGE. Now: The Object weighs 100 lb The angle of P above the horizontal is 42 degrees The coefficient of static friction is 0.6 Assume sufficient friction to prevent slippage of the Object. The magnitude of the maximum P that will not initiate tipping of the Object is _____lb. Answer: 48.044 2 DESIGN CHANGE. LET: The Object weighs 100 lb The angle of P above the horizontal is 42 degrees The coefficient of static friction is 0.6 Assume tipping of the cabinet does not occur. The magnitude of the maximum P that will not initiate slipping of the Object is _____lb. Answer: 52.419 3- DESIGN CHANGE. Now: The Object weighs 100 lb The angle of P above the horizontal is 42 degrees The coefficient of static friction is 0.6 The magnitude of the maximum P that will not initiate motion of the Object is _____lb.What is the difference of Simple pendulum to that of physical pendulum