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Which requires more work-lifting a 50 kgsack a vertical distance of two meters or lifting a 25kg sack a vertical distance of four meters?
Lifting a 50 kg sack a vertical distance of two meters requires more work because work is equal to force multiplied by distance. In this case, the force is greater (50 kg as opposed to 25 kg) even though the distance is shorter.
How much work is done in lifting a 60Kg crate a vertical distance of 10 meters?
The work done in lifting a 60kg crate a vertical distance of 10 meters is given by the formula: work = force x distance x cos(theta), where force = weight x gravitational acceleration = 60kg x 9.8 m/s^2, distance = 10m, theta is the angle between the force and direction of displacement (which is 0 in this case, as it's lifting vertically). Plugging in the values, the work done is approximately 5,880 Joules.
When we carry an object across a room without lifting it or setting it down we do no physical work on it?
Carrying an object without lifting or setting it down does not involve doing physical work on the object in the scientific sense. Work, in a physics context, requires a force to be applied over a distance. In this case, though you are transporting the object, the force applied is not acting over a distance in the vertical direction.
What usually requires less work lifting or sliding?
Sliding usually requires less work than lifting. Lifting involves using more muscle strength and expending energy, while sliding takes advantage of gravity and requires less physical effort.
Which kind of inclined plane pushes up more steeper or flatter what do you think causes this?
A steeper inclined plane exerts more force because it requires lifting the load over a greater vertical distance. Gravity is the force causing this difference, as it acts more directly against the load on a steeper incline compared to a flatter one.
Which requires more work lifting a 100-kilogram sack a vertical distance of 2 meters or lifting a 50-kilogram sack a vertical distance of 4 meters?
They are the same- weight x distance equals weight times distance.
Which requires more work lifting a 50-kg sack a vertical distance of 2 m or lifting a 25-kg sack a vertical distance of 4 m?
work= force x distance, so both require work
Which requires more work-lifting a 50 kgsack a vertical distance of two meters or lifting a 25kg sack a vertical distance of four meters?
Lifting a 50 kg sack a vertical distance of two meters requires more work because work is equal to force multiplied by distance. In this case, the force is greater (50 kg as opposed to 25 kg) even though the distance is shorter.
What is a Distance Multiplier?
DM, established on the basis of results of empirical studies that suggest physical stress increases as the vertical distance of lifting increases. Value = (0.82+4.5/D) (metric) or (0.82+1.8/D) (US system) V= vertical distance of the hands from the floor.
How much work is done in lifting a 60Kg crate a vertical distance of 10 meters?
The work done in lifting a 60kg crate a vertical distance of 10 meters is given by the formula: work = force x distance x cos(theta), where force = weight x gravitational acceleration = 60kg x 9.8 m/s^2, distance = 10m, theta is the angle between the force and direction of displacement (which is 0 in this case, as it's lifting vertically). Plugging in the values, the work done is approximately 5,880 Joules.
When we carry an object across a room without lifting it or setting it down we do no physical work on it?
Carrying an object without lifting or setting it down does not involve doing physical work on the object in the scientific sense. Work, in a physics context, requires a force to be applied over a distance. In this case, though you are transporting the object, the force applied is not acting over a distance in the vertical direction.
Why does a ramp not reduce the amount of work. Please explain in words or with numbers?
Assuming 100% efficiency, the amount of work depends on the weight and the vertical distance (that is, opposite to the pull of gravity) moved. If you use a ramp then you reduce the force by an amount k, that's true, but the distance you have to push in the direction of the force is multiplied by k. The work done is [original force]/k times [vertical distance]times k and the k cancels out. For vertical lifting k=1.
What usually requires less work lifting or sliding?
Sliding usually requires less work than lifting. Lifting involves using more muscle strength and expending energy, while sliding takes advantage of gravity and requires less physical effort.
Why is lifting a box a form of work?
Lifting a box involves exerting force to overcome gravity and move the box vertically. Work is defined as force applied over a distance, so lifting a box requires work to be done against the force of gravity as the box is raised. Thus, lifting a box involves transferring energy to the box to move it to a higher position.
Which kind of inclined plane pushes up more steeper or flatter what do you think causes this?
A steeper inclined plane exerts more force because it requires lifting the load over a greater vertical distance. Gravity is the force causing this difference, as it acts more directly against the load on a steeper incline compared to a flatter one.
How much work you need to move a 280n shed to a platform 5 m above?
The work needed to move the shed to a platform 5m above would depend on the distance it needs to be moved horizontally and the method of moving it. The work done in lifting the shed against gravity can be calculated using the formula: work = force x distance x cos(angle), where the force is the weight of the shed (280 N), the distance is the vertical height (5m), and the angle is the angle between the force and the direction of movement (typically 0 degrees for vertical lifting).
Explain why only the vertical height of the stairs is measured for work?
Only the vertical height of the stairs is measured for work because it accounts for the change in potential energy associated with lifting oneself to a higher elevation against gravity. The horizontal distance does not significantly affect the amount of work done as it does not require overcoming any vertical displacement.
