Final answer:
To calculate the work done by Ronald in lifting the mass, you can use the formula Work = force * distance. By converting the mass to kilograms and calculating the weight, the force needed to lift the mass can be determined. Using this force and the given distance, the work done can then be calculated.
Step-by-step explanation:
The work done by Ronald in lifting the mass can be calculated using the formula:
Work = force * distance
First, we need to convert the mass from grams to kilograms: 250g = 0.25kg. Since Ronald lifts the mass vertically, the force needed is equal to the weight of the mass, which can be calculated using:
Weight = mass * gravity
Assuming gravity to be approximately 9.8 m/s², the weight of the mass is:
Weight = 0.25kg * 9.8 m/s² = 2.45N
Now, we can calculate the work done:
Work = 2.45N * 0.66m = 1.617J