48.6
Lift/Drag x Height loss
On earth, any vertical force greater than 661.39 pounds will lift a mass of 300 kg.
The height of a pallet is such that a pallet truck or forklift truck can put their blades underneath and lift the pallet. From memory it could be between 6" to 9" high measuring from the ground.
If we can neglect friction and the inefficiency of human physical effort, thenthe length of the ramp doesn't matter. In rising 5 meters, the barrel gainsm g h = (40) (9.8) (5) = 1,960 joules of potential energy,so that's the work required to lift it to that height, no matter the route ormethod selected.
200 newton-meters per second = 200 watts.
Use the formula for gravitational potential energy (mgh).
(Mass) x (acceleration of gravity) x (height) = (3.7) x (9.8) x (2.2) = 79.772 joules
Work (W) is the result of the multiplication of the force applied and the displacement of the object. In this case, the force is that needed to overcome the gravity that pulls the block to the earth: 4.6 kg multiplied by the gravity constant of Earth 9.80665 m/s^2, which amounts to 45.11059 N. Thus, the work needed to lift 4.6 kg at a height of 4 m is 207.508714 J.
The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.
work = force x distance force = mass x gravity therefore work = mass x gravity x distance = 4.5 x 9.81 x 1.7 = 75.0465 J gravity is 9.81 in my country, it is our constant yours might be different
The choices are:A. Doubles the force required to lift the blockB. Decreases the force required to lift the blockC. Makes the block easier to lift by changing the direction of the force needed to lift it.D. Decreases the force required and changes the direction of the force required
What do you want to do? A three or four inch lift will permit most tire size changes that the majority of people would want to do.
It makes the block easier to lift by changing the direction of the force needed to lift it.
That depends how high you lift it.The work is mgh (mass x gravity x height). If the mass is in kilograms, gravity is in newton/kilogram (Earth gravity is about 9.8 newton/kilogram), and the height is in meters, then the work will be in joules.
You can lift a riding lawn mower with a car or floor jack in order to change the blades. Simply place the jack under the frame of the lawn mower but away from the blades to lift it. Then, block the mower up using bricks or concrete blocks.
Any solid material that can stand its' weight plus the object to lift. Wood, Iron, Concrete, Plastic, Rock or even Ice block can do the job.
the only difference is for the next pour of concrete your formwork should be on a perfectly set layout. You dont have a STARTER to place your formwork against, so more precision is required for the next lift of concrete.