Is there a simple way to do block, pulley and inclined plane problems? What are the gotchas when doing them?

Q: The press shownm is used to emboss a small seal at E. Knowing that the coefficient of statie…

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Q: Why is the flywheel of an engine made heavy

A: Introduction:The flywheel was made heavy due to increasing the momentum of the inertia of the wheel…

Q: Determine the U and Y components of the 1000-N force shown below. Y 3 1000 N 2 38⁰ X

A: Angle between 1000N force and x axis  = tan-1(2/3) = 33.69° U component = 1000×cos(33.69°+38°) =…

Q: Why does a long pole help a tightrope walker stay balanced?

A: The angular momentum is expressed as,

Q: When mechanical energy is conserved, what terms might show up in a conservation of energy equation?…

A: Given When mechanical energy is conserved, what terms might show up in a conservation of energy…

Q: 8. In one of our Pivot labs, a puck slid down a shallow ramp. Let's say that it does so at constant…

A: The puck is moving at a constant velocity. At constant velocity, the acceleration is always zero.…

Q: In a third class lever system: Question 33 options:   the applied force and the resistance are…

A: the applied force and the resistance are found on the same side with applied force closer to the…

Q: A uniform cable hanging over the edge of a tall building is 40 feet long and weighs 60 pounds. How…

A: Given quantities: length of the cable (L) = 40 feet mass of the cable (m) = 60 pounds acceleration…

Q: A screwdriver with a thick handle requires less force to operate than one with a skinny handle. Why?

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Q: A 84 kg janitor wearing running shoes is running across an ice rink at a speed of 6.3 m/s. They try…

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Q: The lever is a compound machine. True False

A: The lever consisting of a beam or rigid body pivoted at a fixed hinge. A lever is a rigid body…

Q: The diameter of the larger of two pulleys connected with a belt is 10cm. If the ratio is 5​:2​,what…

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Q: Let's say you apply 50 lbs of force to the long end of a wrench, and the other end of the wrench…

A: Given, In wrench, effort applied = 50 lbs Wrench applies force on bolt = 800 lbs

Q: What part should be labelled as the effort arm for the pulley shown?

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Q: o when rotated through

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Q: When Jenny couldn't lift a box by herself, she decided to use a lever to move it. She placed a…

A: Let weight of the object is W.  On the lever, the distance from the fulcrum to object box is r1=1.6…

Q: The units of the slope should be J/m. A joule is the same as a N·m. What are the units of the slope…

A: We have a curve whose slope has the units of J/m. We know that 1 Joule=1 N.m and also Newton can be…

Q: <p>Describe the comparative stabilities of the three objects shown in terms of work and…

A: The stability of the object is determined by the vertical distance that the center of the gravity is…

Q: Which of the following is NOT true of a lever?   -it changes the magnitude of the force   -it…

A: Given: Which of the following is NOT true of a lever?   -it changes the magnitude of the…

Q: What is single movable pulley? What is its mechanical advantage in the ideal case.

A: When the axis of rotation of a pulley is not fixed in position then it is called single movable…

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: Express the 2 forces in CVN then determine the resultant force in N generated at point A which is…

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Q: What is the advantage/disadvantage of using a single (i) fixed and (ii) movable pulley?

A: If a pulley is attached to the mass that we are trying to lift. In that case, we have to lift up the…

Q: In the figure, what magnitude of force F applied horizontally at the axle of the wheel is necessary…

A: Given: mass of wheel m=1.14 kg radius of wheel r=0.747 m height of step h =0.225 m

Q: Pulleys and Block with Friction Determine the value of T for the 120 kg block for the condition of…

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Q: Which lever system has the axis in between, like when moving your head up and down? CHoices: First…

A: solution, There are three types of lever system 1) First class lever -The fulcrum is in the middle…

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.