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Levers
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Questions (267)
A father and son sitting on opposite sides of a seesaw balance each other. What is the father's weight if he is seated at 0.5m
3 answers
asked by
Saria
917 views
The center of gravity of a meter stick that weighs 1.950 N is at the 50.00 cm mark. A 3.54 N weight is suspended from the 20.0
1 answer
asked by
mssailormouth
915 views
A uniform plank of seesaw is 5meter long.a boy weighing40kgf sits 1.5meter from the one end.what will be the distance of a girl
2 answers
asked by
nitesh srivastava
879 views
Mechanical Energy Transfer with Levers
Levers change the direction of a mechanical force to make the force needed for the job
3 answers
asked by
RXB_I
49 views
Find the force (in newton) required to lift a mass of 26 kg load with a wheelbarrow (2nd class lever) with the load at 0.75 m
2 answers
asked by
kody
825 views
A boy who weighs 30 kilograms sits on one end of a seesaw. On the other end there is a girl who weighs 20 kilograms. The girl is
2 answers
asked by
Patricia
769 views
A man lifts various loads with the same lever. The distance of the applied force from the fulcrum is 1.00 m, and the distance
2 answers
asked by
Anonymous
770 views
A man uses a crowbar 1.5 meters long to lift a rock weighing 600N
(Newtons). If the fulcrum is 0.50 Meter fromthe end of the bar
2 answers
asked by
Hasan nagra
743 views
Ali and hid father sit at the ends of a see-saw, 2 m from the pivot, as shown in figure 5.12. Where should ali's mother sit in
3 answers
asked by
Fiesta
727 views
1. Suspend the meter stick by a string from its center.
2. Notice carefully where it balances. It probably will not balance
1 answer
asked by
Marilyn
699 views
A uniform of 100N pipe is use as a lever. When must the fulcrum (supported point) be placed if a 500N weight at one end to
1 answer
asked by
Dave Ang
703 views
what force must be applied to the end of a 2.0 meter long crowbar in order to lift a 500 Newton rock if the fulcrum of the bar
1 answer
asked by
rowena
717 views
A 30kg child and 20kg child sit on the opposite ends of a seesaw pivoted at its centre. Where should another 20kg child sit in
2 answers
asked by
Thandizo
704 views
Ayesha exerts a force of 186 N on a lever to raise a 2.70 × 103-N object to a height of 29.0 cm. If the
efficiency of the lever
1 answer
asked by
sam
681 views
A 2meters crowbar is employed to lift a load 300kg. What force must be applied to one end of the crowbar when a stump acting as
3 answers
asked by
Boi
662 views
A small girl of weight 150N is placed on the centre of the plank. She then walks to the right and goes past trestle Q. When the
1 answer
asked by
Donte
587 views
Why is a pizza cutter handle a lever?
2 answers
asked by
Annie
591 views
Suppose we wish to use a 4.0 m iron bar to lift a heavy object by using it as a lever. If we place the pivot point at a distance
2 answers
asked by
lol
590 views
The boy A weighs 50 kg and the girl B weighs 35 kg in a seesaw...the board of the seesaw is 3.6 meter... To balance the seesaw
2 answers
asked by
james
599 views
A 5 m long see saw has a child whose mass is 25 kg sitting on one end. How far in meters from the center should a 70 kg adult
2 answers
asked by
bob
559 views
A box is lifted with a pry bar, by slipping the bar under the box and lifting up on the bar. If the pry bar is 2m in length and
3 answers
asked by
CHRIST
583 views
A fulcrum of a lever (which is placed horizontally) is placed 8 meters from a force of 28 Newton and another force of 14 Newton
3 answers
asked by
Honey
573 views
A straight ladder is leaning against the wall of a house. The ladder has rails 4.50 m long, joined by rungs 0.470 m long. Its
2 answers
asked by
Bob
558 views
A fulcrum of a lever (which is placed horizontally) is placed 8 meters from a force of 28 Newton and another force of 14 Newton
2 answers
asked by
Honey
562 views
In the nail puller shown in the figure below you exert a force 53.2 cm from the pivot and the nail is 1.50 cm on the other side.
2 answers
asked by
stephanie
536 views
If a force of 380 N is applied to the end of a 2 meter crowbar order to lift a 500N rock and if the fulcrum of the bar is 0.5
4 answers
asked by
Anonymous
548 views
A crowbar lever , with a 3 inch long nail remover connected to a 20inch handle. If you push down on the handle end with a force
2 answers
asked by
Anonymous
534 views
A 3 m long lever is used to lift a mass of 500 kg. If a force of 200 N is to be used to life the mass, then how far from the
3 answers
asked by
Colby
486 views
A machine with an efficiency of 100% is said to be efficient.
a) If a lever has a distance of 4m from the pivot to where a load
2 answers
asked by
alexander
509 views
The load has the weight of 300N,the distance of the load from the fulcrum is 30m, the effort is 60m away from the fulcrum. Find
2 answers
asked by
Zama
492 views
1.Which class lever will never give you a mechanical advantage?
2.Which class lever will always give you a mechanical advantage?
1 answer
asked by
jordan
520 views
If a lever has a mechanical advantage of 6, and the distance from the fulcrum to the load is .05m, how far is it from the
3 answers
asked by
Hannah
488 views
For a seesaw that 14 ft long, where should the fulcrum be placed to balance a 204 lbs adult and a 81.6 lbs child?
1 answer
asked by
Brittany
536 views
A lever uses a force 212 Newtons to move a rock that weighs 2000 Newtons. What is the mechanical advantage?
1 answer
asked by
christy
462 views
were must be the pivot situated on a straight lever 2m long,if a downward effort of 200N at one end is to lift a mass of 50kg at
1 answer
asked by
Douglas
450 views
The handle of a car jack is moved 150 cm in order to lift the
car 5.0 cm. What is the ideal mechanical advantage of this car
1 answer
asked anonymously
54 views
A metre stick is used as a lever. If the
input force is applied at 0 cm and the output force is exerted at 100 cm, what is the
1 answer
asked anonymously
61 views
20) _____ is an example of first-class levers (a) nut cracker (b) bottle opener (c) spanners (d) table knife
1 answer
asked anonymously
35 views
A worker tearing down a barn uses a crowbar 4feet long with the shorter end
being 2 inches from the fulcrum. If the worker can
3 answers
asked by
Al
447 views
A lever is placed on a fulcrum. A rock is placed on the left end of the lever and a downward (clockwise) force is applied to the
1 answer
asked anonymously
42 views
A lever is placed on a fulcrum. A rock is placed on the left end of the lever and a downward (clockwise) force is applied to the
1 answer
asked anonymously
43 views
A seesaw has a borad that pivots in the middle, meaning the fulcrum is between the effort and the load. What kind of lever is a
1 answer
asked anonymously
93 views
Which example represents a class 2 lever? (1 point)
a screwdriver opening a paint can • a car door being opened and shut •
1 answer
asked anonymously
28 views
Gardeners would need to use 960 Newtons of force to lift a potted tree 45 centimeters onto a deck. Instead, they set up a lever.
1 answer
asked anonymously
30 views
A team of students builds a lever as a science project. They expend 10,300 Joules of energy to lift some bricks with the lever.
I
1 answer
asked anonymously
28 views
A person is lifting a heavy box using a lever. What is the purpose of the lever in this situation? (1 point)
to reduce the force
1 answer
asked anonymously
32 views
Which example represents a class 2 lever?(1 point) Responses tweezers plucking hairs tweezers plucking hairs a car door being
1 answer
asked by
4bahng on dc
85 views
A person uses a screwdriver as a lever to open a can of paint. Where is the fulcrum in this situation?(1 point) Responses the
1 answer
asked by
4bahng on dc
27 views
Which example represents a class 2 lever?(1 point)
Responses tweezers plucking hairs tweezers plucking hairs a car door being
1 answer
asked anonymously
53 views
A lever with an effort arm of 10 meters and a load arm of 2 meters is used to lift an object weighing 220 Newtons to a height of
1 answer
asked anonymously
36 views
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Parent Categories (14)
Forces
Forces and Work
Machines
Mechanical Advantage
Mechanical Physics
Mechanical principles
Mechanical Systems
Mechanical Tools
Mechanics
Mechanics or Simple Machines
Physics
Physics or Mechanics
Simple Machines
Statics