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You have to be careful what you mean by weight. Most people mean mass when they say weight but really it means the force produced by gravity on a massive object. So if we take the acceleration of gravity to be 10m/s2 (not exact I know but as g varies with latitude this is a convenient number to work with) the weight of an object is 3000g x 10m/s2 = 30 kg m/s2 or 30 Newtons or
3000kg x 10m/s2 = 30000 Newtons or just 3000 Newtons (see why units are so important!) Now to lift an object of weight 3000 Newtons will require a lifting force of 3000 Newtons. (Actually a bit more as 3000 Newtons would just have it in equilibrium but when we calculate work we use only this amount) But when we raise something a distance we are not measuring force but work which is Force x distance and is measured in Joules. Before we do this calculation it is proper to convert feet into meters 8 feet x 0.3048 meters/foot = 2.4384m
3000 N x 2.4384 m = 7315.2 Joules or 7.3152 Kj
What else can I help you with?
What kind a force is walking?
Walking is a mechanical force generated by the muscles in our body contracting and relaxing to move our limbs. It is a type of kinetic friction force between our feet and the ground that propels us forward.
How do you calculate if the effort force was missing?
If you know the amount of work, and distance, set up an algebraic expression. For instance if the amount of work is 40, and the distance is 2 feet, and you let F= effort force, the equation is 2F=40. You solve by dividing by both sides by 2. So, the effort force is 20.
What is the formula for calculating the force required to push a 3000 pound rack on wheels for 100 feet?
The force required to push a rack on wheels can be calculated using the formula: Force = Mass * Acceleration. In this case, the mass of the rack is 3000 pounds and the distance is 100 feet. To determine the acceleration, additional information such as the time taken or the initial and final velocities would be needed.
What is the mechanical advantage of a lever with an effort alarm of 12 feet and a resistance arm of 3 feet?
The mechanical advantage of a lever is determined by the ratio of the effort arm to the resistance arm. In this case, the mechanical advantage would be 12 feet (effort arm) divided by 3 feet (resistance arm), resulting in a mechanical advantage of 4.
What is the mechanical advantage of a lever with an effort arm of 12 feet resistance arm of 3 feet?
The mechanical advantage of a lever is calculated by dividing the length of the effort arm by the length of the resistance arm. In this case, the mechanical advantage would be 12 feet (effort arm) divided by 3 feet (resistance arm), which equals a mechanical advantage of 4.
What kind a force is walking?
Walking is a mechanical force generated by the muscles in our body contracting and relaxing to move our limbs. It is a type of kinetic friction force between our feet and the ground that propels us forward.
How do you calculate if the effort force was missing?
If you know the amount of work, and distance, set up an algebraic expression. For instance if the amount of work is 40, and the distance is 2 feet, and you let F= effort force, the equation is 2F=40. You solve by dividing by both sides by 2. So, the effort force is 20.
How does wedge makes work easier?
it lowers the force required to move an object. For example, if you move a brick up 1 feet over 8 feet distance, you will only need to use 1/8 force.
What is the formula for calculating the force required to push a 3000 pound rack on wheels for 100 feet?
The force required to push a rack on wheels can be calculated using the formula: Force = Mass * Acceleration. In this case, the mass of the rack is 3000 pounds and the distance is 100 feet. To determine the acceleration, additional information such as the time taken or the initial and final velocities would be needed.
What is the mechanical advantage of a lever with an effort alarm of 12 feet and a resistance arm of 3 feet?
The mechanical advantage of a lever is determined by the ratio of the effort arm to the resistance arm. In this case, the mechanical advantage would be 12 feet (effort arm) divided by 3 feet (resistance arm), resulting in a mechanical advantage of 4.
What is the mechanical advantage of a lever with an effort arm of 12 feet resistance arm of 3 feet?
The mechanical advantage of a lever is calculated by dividing the length of the effort arm by the length of the resistance arm. In this case, the mechanical advantage would be 12 feet (effort arm) divided by 3 feet (resistance arm), which equals a mechanical advantage of 4.
When you walk your feet push against the ground's the same time the ground pushes against your feet. what is the action force?
The action force is the force exerted by your feet on the ground. This force is the force that you apply to the ground when walking.
What is the mechanical adventage of a ramp that is 20 feet and 2 feet above ground?
The theoretical mechanical advantage is the length of the ramp divided by its height. 20/2=10.
When you standing on the floor does the floor exert an upward force against your feet How much force does it exert?
Because your feet are not accelerating, the force exerted by the floor upon your feet must be exactly the same as the force exerted by your feet on the floor. If you are standing, the amount of force exerted by your feet, and thus the amount of force exerted by the floor, is equivalent to your weight.
What is the mechanical advantage of a lever with a resistance arm of 1.5 feet and an effort arm of three feet?
The mechanical advantage of a lever is calculated by dividing the effort arm length by the resistance arm length. In this case, the mechanical advantage would be 2, as 3 feet (effort arm) divided by 1.5 feet (resistance arm) equals 2.
How do you find cfm required to cool wood shed containing 25 HP air compressor?
GO TO THE COMPRESSOR MANUFACTURER AND FIND OUT THE QUANTITY OF HEAT THE UNIT PRODUCES. INQUIRE ALSO WHAT THE OPERATING ENVIRONMENT FOR THE EQUIP. SHOULD BE. AMBIENT OUTSIDE TEMPERATURE LESS DESIRED INSIDE TEMPERATURE WILL GIVE YOU A DELTA T. VOLUME OF ROOM IN CUBIC FEET DIVIDED BY CFM RATING ON EXAUST FAN GIVES YOU ACH- AIR CHANGES/ HOUR. PROVIDE SUFFICIENT INTAKE AIR TO ALLOW PROPER OPERATION. MECHANICAL LOUVERS OPEN/ CLOSE OR FULLY MODULATING. LC
What is the unit common to both mechanical and electrical power?
Both electrical and mechanical power can be expressed in units of joules/sec (joules/s) or a watt (W). In the English system feet - pounds force per second (ft-lb f/s) or horsepower (hp) can be used.
