Web Results

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 6kg toolbox 1.5 meters onto a shelf in 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?

How much work is required to lift a 10kg weight 5m off the floor if the

www.jiskha.com/search/index.cgi?query=How much work is required to lift a 10kg weight 5m off the floor if the time is 10 sec?

You take a 10 N block and lift it 1 meter vertically from the floor and then ... (b) How much force is required to lift the box, if the mass of the box is 100 kg? ... Calculate the work required to lift a 20kg object from the floor to a height of 2 meters. ... The height (in feet) of a small weight oscillating at the end of a spring is ...

Physics Homework Help: Friction and Weight - Physics 24/7


Applying Newton's Second Law of Motion, a 200 kg object will have a weight of ... You are standing on a bathroom scale in an elevator and wish to calculate what ... the 10th floor. 5. A constant force of 600 N is applied straight up on a 50 kg crate. ... If 40 kN of friction opposes the plane, how much time it will take the plane t...

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.

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


Only the component of the force parallel to the motion does work. As in the diagram below, if a rope is tied to a box and the box is pulled horizontally along a floor, some ... frictionless coasters is pushed 5 m along a ramp that makes an angle of 20º ... The force applied against gravity is F = mg = (200.0 kg)(9.8 N/kg) = 1960 N

The work-energy theorem states that the work done on - Northern ...


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 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?

7. Kinetic Energy and Work Kinetic Energy: The kinetic ... - Physics


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 acting on the ... Consider a box being dragged a distance d across a frictionless floor: ... other form of energy to change, e. g. we can .... −3⋅9.8⋅5 = 0.

Ask the Physicist!

www.askthephysicist.com/classical mechanics.html

I could make a better estimate if you could tell me how far this particular car, ... For v0=340 m/s (speed of sound) and a baseball (mass=0.15 kg, ... if launched horizontally from a height of 5 m will hit the ground in one second as shown below. .... F is the force you exert, W is the weight, N is the force the floor exerts vertically...

More Info

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


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

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


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.