Imagine taping a pencil on your tabletop. Let this be the fulcrum. Let a hard 1-foot ruler rest on top of the pencil, with the right on the fulcrum. Place the rectangular paperweight at the 5-inch mark. Lift the weight by pressing your finger on points at the other side of the fulcrum. Where it will take less effort to lift the load-at points closer to or farther away from the fulcrum?

Q: A thin spheecal sheli, a sólid and the rolbdown without sliding. The ratio of their velocities, when…

A: Given:- A thin spherical shell, a solid cylinder and a disc  are released from ret at the top of a…

Q: The torque is maximum when the angle between the Force and the lever arm is: a) 45 deg b) 180 deg…

A: The torque exerted by a force on a lever arm is given by the formula:Torque=Force ×L ever Arm ×…

Q: The bolts on a car wheel require tightening to a torque of 9 N∙m.  If a 8 cm long wrench is used,…

A: Given data: Torque is, τ=9 N∙m The length of the wrench is, r= 8 cm= 0.08 m The angle between F and…

Q: Name two ways that a single force can provide no torque around a given axis.

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

A: The angular momentum is expressed as,

Q: John weighs 198 lbs and Jane weighs 122 lbs. They are both sitting on opposite sides of a seesaw. If…

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Q: Under what conditions can a rotating body be in equilibrium? Give an example.

A: Given:  Rotating body

Q: The wheels of railroad trains are tapered, a feature especially important on curves. How, if at all,…

A: There will be a change in diameter of the wheel when there is tapering of the wheels of the railroad…

Q: Differentiate torque from angular momentum.

A: Introduction: Torque: It is the rotational equivalent of linear force, which is equal to the product…

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: If the angle is 45 degrees is increased, is there a possibility that the sphere will not roll, but…

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Q: Two children at a park sit on opposite ends of a see-saw. The first child sits closer to the center…

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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 tree 540 m away subtends an angle of 2 degrees. Find the height of the tree.

A: Given value--- base = 540 m. angle = 2 degree . We have to find--- height  ?

Q: Calculate the Torque that a child must apply to swing a rock of mass 0.5 kg in a radius 1.16 meters.…

A: mass of rock (m) = 0.5 kg radius (R) = 1.16 m Initial velocity (u) = 0 msfinal velocity (v) = 5…

Q: Archimedes, a Greek philosopher, famously stated, "Give me a lever long enough and a fulcrum on…

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Q: Find the net torque on the system if...

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Q: he normal force is... Always points straight up Is always equal to the force of gravity Always…

A: Ques: The normal force is... Always points straight up Is always equal to the force of gravity…

Q: Hang a weight m = 30 g on the left side of the lever at the 5 marks. At which mark on the  right…

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Q: A box is suspended from a coil of rope on a pulley of radius (0.54m) and rotating at a constant…

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Q: Why must the torque due to the weight be equal in magnitude?

A: Here , torque due to weight is calculated for a particular position . Since weight is same for all…

Q: Why do roads on mountains have inward inclination at sharp turns?

A: When a vehicle moves along a horizontal curved road on a mountain, the necessary centripetal force…

Q: A gymnast does a one-arm handstand. The humerus, which is the upper arm bone between the elbow and…

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Q: The inertia of a body depends on the angular velocity the torque acting on the body the angular…

A: The inertia of a body depends on the angular velocity the torque acting on the body the angular…

Q: Consider a 0.5 kg mass at the top of a 1.5 m high (vertical) incline. if this mass were a hollow…

A: Given data:m=0.5 kg h=1.5 m Hollow sphere:Moment of inertia:…

Q: If a car can generate 230lbs/ft of torque at the wheels, and the rear tires are 18inches in…

A: Let f denotes the force on each of the rear tires, τ denotes the torque on each of the rear tires,…

Q: cat is balanced on the edge of a see-saw. The plank of the see-saw is 1m long, and the wedge is…

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Q: Why Does A Cyclist Lean To One Side, While Going Along A Curve? In What Direction Does He Lean?

A: The cyclist bends slightly inwards while going on a curved road because by doing that the cyclist is…

Q: When opening a door you push on it perpendicularly with a force of 75 N at a distance of 0.875 m…

A: Given: The applied force is 75 N perpendiuclar. The distance of the hinged from 0.875 m.

Q: A weight of 30 N is located a distance of 10 cm from the fulcrum of a balance beam. At what distance…

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Q: 85 : A motor cyclist moves around a circular track of length 628 m with a speed of 72 km/hr. Find to…

A: In the given question we have to find he angle of inclination θ as the motor cyclist moves around a…