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If you want to lift a 20-kg box off the floor to a height of 0.5 meters ...


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 ...

Work and Energy Notes - District 196


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?

A 5kg mass was lifted 365cm, how much work was done against

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A 4.00kg crate is slowly lifted to a height of 1.50m. a.How much work is done by the ... the student must lift 70% of the body mass a height of 40cm off the floor. ... If it takes 10 N to compress a spring 20cm, how much energy will be stored in the ... When a 5 kg box is lifted 3 meters from the ground, calculate the gravitational ...

Work and Power - TuHS Physics


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?

Physics Homework Help: Work, Power - Physics 24/7


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.

The work-energy theorem states that the work - Northern Highlands


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 ...

Work and Energy Review - with Answers #2 - The Physics Classroom


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.

work and energy

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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...

7. Kinetic Energy and Work Kinetic Energy - Physics


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.

(a) (b) Who is doing more work? - profpaz.com


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.

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If you want to lift a 20 kg box off the floor to a height of 05 meters how ...


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? The formula for work done against gravity is straightforward ...

how much work is being done if a 100 N box is lifted 3 meters off


how much work is done when 100 kg lifted 5 meters above the ground ... If the box is lifted, at constant acceleration, from rest on the floor to a height of 1.5 m . ... I need help with these three questions, thanks 1)The man lifts a box that weght 185N. ... I found that 353N is the maximum force you can apply to box 1 so that box 2 ...

Work Done against Gravity - CPO Science


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.