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.jiskha.com/search/index.cgi?query=What is your average power if you lift a 33.8 kg box at a constant speed to a height of 3.27 m in 6.10 s?

A box with a mass of 5 kg is lifted (at constant velocity) to a height of 3 m to place
it on the ... A 5.o kg box is lifted to a height of 10 meters at a constant speed. a)
How much power is .... Arrange the given roller coasters from least to greatest lift
height -20,-8,0,16,60,. ... A motor lifts a 70.0 kg box off the ground, starting ...

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.

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.

www.physics.ohio-state.edu/~gan/teaching/spring99/C7.pdf

If the velocity of an object ... same velocity, the bowling ball has much ... If we
drop a 3-kg ball from a height of h = 10 m, ... Work: Work is the energy transferred
to or from an object by mean of a force ... Consider a box being dragged a
distance d across a frictionless floor: .... A 3-kg mass is dropped from a height h =
5 m.

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
...

galileoandeinstein.physics.virginia.edu/lectures/momentum.html

Nov 29, 2007 ... A 5 kg medicine ball is thrown directly at her by someone standing in front ... a
speed of 0.5 meters per second, so the final momentum is 0.5x50 = 25, ... If you
lift up a box of books from the floor and put it on a shelf, you've done ... It's
obvious that you will have to do twice as much work to raise a box o...

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

Specifically, the gravitational energy is the product of weight times height:
Gravitational ... as much gravitational energy as if you lift it only one foot, because
of the greater height. On .... height. For example, lifting a single brick two meters
off the ground takes ..... How much work must you perform to lift a 5-kg bag of
groce...

www.ux1.eiu.edu/~cfadd/1350/Hmwk/Ch07/Ch7.html

If he does this 20 times, how much work has he done? (4 ed) 7.2 If you push a
40.0-kg crate at a constant speed of 1.40 m/s across a horizontal floor ( k = 0.25),
at what ... Air resistance -- like all friction forces -- always does negative work. ...
The block is not jumping up off the plane and it is not burrowing down into the
plane...