Find the amount of work done by a worker living 225n of bricks straight up to a height of 1.75 m
1
First, we need to determine the weight of the bricks.
The weight of a brick can vary depending on the type and size, but for this calculation, we will assume an average weight of 4 kg per brick.
Next, we need to calculate the total weight of the bricks being lifted.
Since we know that there are 225 bricks, we can multiply the weight per brick (4 kg) by the number of bricks to find the total weight:
Total weight = 4 kg/brick * 225 bricks = 900 kg.
Now, we can calculate the work done using the formula:
Work = force * distance.
The force required to lift the bricks is equal to the weight of the bricks.
The distance is given as 1.75 m.
Plugging in the values:
Work = 900 kg * 9.8 m/s^2 * 1.75 m = 15,735 J.
Therefore, the amount of work done by the worker is 15,735 Joules.
To find the amount of work done by a worker in lifting bricks, we can use the formula:
Work = Force * Distance
In this case, the force required to lift a single brick straight up is equal to its weight. The weight of an object is given by the formula:
Weight = mass * gravitational acceleration
The mass of a brick is not provided in the question, so we will assume a standard mass of a brick, which is usually around 2.5 kg.
Gravitational acceleration is usually taken as 9.8 m/s^2.
Using these values, we can calculate the weight of a single brick:
Weight = 2.5 kg * 9.8 m/s^2
Weight = 24.5 N (Newtons)
Now, we can calculate the work done by the worker to lift the bricks:
Work = Force * Distance
Work = 24.5 N * 1.75 m
Work = 42.875 Joules (J)
Thus, the amount of work done by the worker to lift 225 bricks straight up to a height of 1.75 meters is approximately 42.875 Joules.
To find the amount of work done by a worker, we need to use the formula:
Work = Force × Distance × cos(θ)
Where:
- Work is the amount of work done
- Force is the force applied to move the object
- Distance is the distance over which the force is applied
- θ is the angle between the direction of the force and the direction of the movement
In this case, the worker is lifting the bricks straight up, so the angle θ between the force and the movement is 0 degrees. Thus, we can simplify the formula to:
Work = Force × Distance
Given:
- The worker is lifting 225 units (n) of bricks
- The height the bricks are lifted is 1.75 meters
We need to find the amount of force the worker is applying.
To do this, we'll use the formula:
Force = mass × acceleration due to gravity
Since mass is given as 225 units (n), we need to convert it to kilograms (kg). Assuming 1 unit (n) is equal to 1 kilogram (kg), the mass in kilograms is also 225 kg.
The acceleration due to gravity is approximately 9.8 m/s^2.
So the force applied by the worker is:
Force = 225 kg × 9.8 m/s^2
Now we can calculate the amount of work done:
Work = Force × Distance
= (225 kg × 9.8 m/s^2) × 1.75 m
Calculating this expression will give us the amount of work done by the worker in the appropriate unit (such as Joules).