How much work is required to lift a 10kg weight 5m off the floor if the time is 10 sec?
Time has to do with power, not work.
Work=mgh=10*9.8*5 joules
To calculate the work required to lift a weight, you need to know the weight being lifted, the distance it is being lifted, and the time taken to lift it.
The formula to calculate work is:
Work = Force × Distance
In this case, the weight being lifted is 10 kg, and the distance is 5 m. The force required to lift the object can be calculated using the formula:
Force = Mass × Acceleration due to gravity
Acceleration due to gravity on Earth is approximately 9.8 m/s².
Therefore, the force required to lift the 10 kg weight is:
Force = 10 kg × 9.8 m/s²
The work required to lift the weight can now be calculated by multiplying the force and the distance:
Work = Force × Distance
Work = (10 kg × 9.8 m/s²) × 5 m
So the work required to lift the 10 kg weight 5 m off the floor is:
Work = 490 Joules
Therefore, 490 Joules of work are required.