State one reason why is mechanical advantage less than the velocity ratio for an actual machine?

Q: lever

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Q: Both a short ramp and a long ramp reach a height 1 m. Which ramp has a greater mechanical advantage?

A: Mechanical Advantage (MA) = ( Input Distance) / (Output Distance)

Q: Explain Conservation of Total Mechanical Energy (Gravitational Forces Only).

A: Mechanical energy of a system is the sum of the potential and kinetic energies in the system. The…

Q: Calculate the load? Mechanical advantage of a machine is 70 Effort given = 12 kgf

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Q: The figure shows a 100 kg block being released from rust from the height of 1.0 m. It then takes…

A: Height of the bigger block is h = 1 m Time taken to reach the bigger block to the ground is t =…

Q: levers are classified into three classes according to muscle force All fulcrum point weight

A: Levers are classified into three classes. These are given as, Class 1 Class 2 Class 3

Q: How is the mechanical advantage related to the velocity ratio for (i) an ideal machine (ii) a…

A: The relation between mechanical advantage and velocity ratio is

Q: Identify the machine that offers no mechanical advantage. (Select all that apply). a single, fixed…

A: Mechanical advantage is used to amplify the output, when a fixed amount of input is provided to the…

Q: Power of the machine if it is 100% efficient.

A: Given data; Load raises by machine,F= 720 NHeight raises the load,h=12 m time,t= 5 secCalculate;…

Q: kinetic energies compare

A: Expression of rotational kinetic energy. K=12Iω2 Moment of inertia of solid disk: Is=12MR2 Moment of…

Q: Given: An object weighing 6500 kN in the figure What is wanted: Finding the mass m that will move…

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Q: Give reason why in a single fixed pulley, the velocity is always more than the mechanical advantage.

A: The expression for the velocity ratio,

Q: 4.) An input force of 60 N is used to lift an object weighing 240 N with a set of pulleys. What is…

A: Given data:Input force, Finp = 60N Weight of object, W = 240 N

Q: The total mechanical energy of the block is the sum of kinetic and potential energies.

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Q: Gina wheels her wheelchair up a ramp using a force of 80 newtons. If the ramp has a mechanical…

A: Given Data: The applied force is: Fa=80 N The mechanical advantage of the ramp is: MA=7

Q: Using a lever, Joe is able to lift a 10,000 N car off the ground with a force of 1,000 N. What is…

A: Weight of car= 10000 N Force applied by Joe We know that mechanical advantage(M.A)= output force/…

Q: For the lever shown in the figure below find the effort that can lift the load. (Use: g = 9.8 m/s)…

A: Torque is defined as Γ→=r→×F→=rFsinθ Here r is the distance, F is force and θ is the angle between r…

Q: Design a lever system using a 3.0 m lever that has a mechanical advan- tage of 2.5. Show your work.

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Q: For the pulley system shown, what is the upper limit of weight the strong man can lift?

A: Given:  A man lifts a weight by a pulley

Q: Sergei uses a lever to lift a heavy rock. He obtains a 2.5 m lever and places the fulcrum 0.7 m from…

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Q: Determine if the lever system shown below is balanced. Show your work. 6N (8) 4N 2N 3 m 2m 2m

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Q: A hoist furnished with 90kW lifts 500kg to height of 12 m in 20 s. Find the efficiency of this…

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Q: Here is the question below :) What is the numerical value for the IMA of a lever if the effort arm…

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Q: the force exerted by a machine is called the ____ A. effort force B. resistance force C.…

A: Please see the answer in step 2.

Q: What do you mean by simple machine? State the principle of ideal machine?

A: Ideal machines have the theoretical maximum performance, and therefore are used as a baseline for…

Q: How far will the 100-kg block move 2 seconds after it is released from the position shown. The…

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Q: Calculate the mechanical advantage.

A: The formula for the mechanical advantage is:

Q: For the given mass and pulley system below, draw a diagram of the forces on the system, determine…

A: Given information: Here, M and m are the mass hanged on either side of the pulley and g…

Q: Tension/Mechanical Advantage Practice (1) (a) Find the mechanical advantage of the pulley system…

A: Given data: -  The weight of the block is W = 4720 N.

Q: A bicycle is a compound machine using levers and gears. (a) True (b) False

A: Levers and Gears are simple machines on their own. However, bicycle is a compound machine that is…

Q: The figure below is for a 50 kg person standing n an elevator as it moves down. Use g = 10 m/s?,

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Q: Which is not a simple machine? O pulley ramp O bicycle wood screW

A: Pulley, Ramp and Wood Screw are all simple machines. Often, they are single piece components.…

Q: At what distance "dg" should the effort be applied on the lever to lift the load as shown in the…

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Q: Give reason why the efficiency of a movable pulley is always less than 100%.

A: For a pulley,

Q: mechanical advantage ?

A: Given ; Sword blade is 20cm long effort arm= 20 cm  load arm= 2.0 cmCalculate it mechanical…

Q: How do simple machines provide mechanical advantage

A: Mechanical advantages Which  permits the person to execute the operation with respect to the  force…

Q: Match each type of simple machine with its example. 1. wedge a. doorknob b. chisel 2. wheel and axle…

A: 1. Wedge - chisel (both have one thick end and one pointed end) 2. Wheel and axle - Doorknob (same…

Q: kinetic energy of the object.

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Q: Which of the following is a compound machine?   A) Screw B) Knife C) Bicycle D) Ramp

A: (A) A screw has an inclined plane wrapped around a cylinder or a cone. It is a simple machine. Thus,…

Q: analyze how you could make your pulley system have a higher work output

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Q: At which point in the diagram below will the driver posses the greatest kinetic energy?

A: The diver posses the greatest kinetic energy at point E

Q: What is the formula to calculate the mechanical advantage of a lever?

A: Mechanical advantage  Its ratio of the input force to the output force. MA = input arm distance…

Q: What type of simple machine is a flight of stairs? O pulley wedge inclined plane lever

A: A Simple Machine is a machine which helps in changing the direction of application of Force or in…

Q: Write the equivalence of mechanical power, and write the physical meaning all of the terms in a…

A: Equivalence of mechanical power and its physical meaning: Explanation: Power is the amount of energy…

Q: State the relationship between mechanical advantage, velocity ratio and efficiency.

A: The more efficient a tool is, the greater its mechanical ratio will be. Ideal mechanical advantage…

Q: Which of these is not a simple machine?   A) a pair of scissors B) a lever C) a ramp D) the pulley

A: The machine is a mechanical device in which some form of input is given to get desired output. There…