How much work is required to lift a 3.3-kg concrete block to a height of 1.2 m?
Same procedure qs previous prob.
I lift a chair that weights 30 lbs and 3 meters.how much did I do?
The man lifted the 15 pound weight 2 feet above his head. How much work was done?
To find the amount of work required to lift a concrete block, we can use the formula:
Work = force × distance
Where:
- Work is measured in joules (J)
- Force is the amount of force applied to move the object (measured in newtons, N)
- Distance is the height the object is lifted (measured in meters, m)
In this case, the force required to lift the concrete block can be calculated using Newton's second law of motion:
Force = mass × acceleration
The mass of the concrete block is given as 3.3 kg. The acceleration due to gravity is approximately 9.8 m/s².
Force = 3.3 kg × 9.8 m/s² = 32.34 N
Now that we have the force, we can calculate the work using the previously mentioned formula:
Work = force × distance = 32.34 N × 1.2 m = 38.808 J
Therefore, it would require approximately 38.808 joules of work to lift the 3.3 kg concrete block to a height of 1.2 m.