www.answers.com/Q/If_you_want_to_lift_a_20-kg_box_off_the_floor_to_a_height_of_0.5_meters_how_much_work_will_it_take

If you want to lift a 20-kg box off the floor to a height of 0.5 meters how much work
... How much work will it take to lift a 2-kg pair of hiking boots 2 meters off the ...

www.district196.org/avhs/dept/science/physics/physicsweb04/AVHSPhysics/worknrgnotes.html

When you lift a box up off the floor, you must exert a force at least equal to ...
Kinetic Energy is produced when a net force does work on the object ... For
example, if a 0.5 kg ball is travelling at 10 m/s, then it has ... Equation for PE: PE =
mass x acceleration due to gravity x height above the ground ... How much work
is done?

www.cposcience.com/home/portals/2/media/post_sale_content/pfc/ancillaries/u2/u2_skill_and_practice_sheets/pfc_u2_ss.pdf

height because only the vertical distance an object moves matters for ... If you
have to lift a new sofa to a second-floor apartment, the work done ... Elijah does
44 joules of work against gravity to pull a 0.5-kilogram rope with a ..... A lever
used to lift a heavy box has an input arm of 4 meters and an output arm of 0.8
meters.

tuhsphysics.ttsd.k12.or.us/Tutorial/Lessons/wknpwr/phy.htm

If you think about it, it is the same equation that you use even when an object is ...
s=5m and F=20N just like in the previous problem, but this time q =60<sup>o</sup> ... Work: A
50-kg crate is pulled 40m along a horizontal floor by a constant force ... Cos(90<sup>o</sup>)
=0 ... power rating of a motor that can lift a 600 Kg load 30 meters in 5 seconds?

www.profpaz.com/Files/physci/Chap_04.pdf

if the object is moved 50 m? F= d= W= 2. 650 J of work is done in moving a desk
a horizontal distance of 5 m. ... How much work is done in lifting a 10 kg box 1.5
m off the floor? 2 ... A force of 150 N is used to push a motorcycle 10 m along a
road in 20 s. ... A crane uses 750 kW of power to lift a car 0.5 m in 12 seconds.

www.northernhighlands.org/cms/lib5/NJ01000179/Centricity/Domain/32/Notes_energy_honors.pdf

If work is the only means to move energy into or out of our system than it will be
true ... room at a constant velocity and put it on a shelf at the same height. ....
Lifting the box off the floor requires you to supply a force at least equal to its .... On
Planet X a 0.5 kg space rock falls a distance of 2.5 meters and looses 20 J of
...

www.physicsclassroom.com/reviews/energy/energyans2.cfm

A 1200 kg car and a 2400 kg car are lifted to the same height at a constant ...
How much work does he do on the box while walking across the floor at constant
speed? ... kinetic energy is directly related to the square of the speed (KE=0.5*m*
v<sup>2</sup>). ... off a diving board that is elevated to a height of 10 meters above the water.

physics.weber.edu/schroeder/EEE/chapter2.pdf

Specifically, the gravitational energy is the product of weight times height:
Gravitational energy ... For example, if you lift a brick two feet off the ground, you'
ve given it twice as much .... A 5-kg bag of groceries sits on the counter top, one
meter above ... is 100% efficient, how much electrical energy can be obtained as
it ...

www.dallassd.com/our schools/high School/Chemsite/physics/physicsnotes/p6work_energy.pdf

the box's direction. Fighting against the force of gravity. Work and Direction ... 2.
Vertical vs. Horizontal Work. Lifting. Gives an object. Potential Energy of ... 5. A
rocket travels at a constant speed through space. How much work is ... 0 =Fv-mg.
Fv = mg = (15.0 kg)(9.80 m/s2). Fv = 147 N. Whiker = Fd = (147 ... The floor has a...

www.physics247.com/physics-homework-help/work-power.php

Only the component of the force parallel to the motion does work. ... if a rope is
tied to a box and the box is pulled horizontally along a floor, some ... How much
work was done on the text book? ... ANSWER: None, since F = 0, W = 0. ...
frictionless coasters is pushed 5 m along a ramp that makes an angle of 20º to
the ground.