Answer :
The work done to lift a 20-kg sack of potatoes 6.5m is found using the formula W = mgh, which, after calculating, gives approximately 1300 J. The closest answer provided is 1300 J.
The question asks about the work done in lifting an object vertically against the force of gravity. The formula to find the work done, 'W', in lifting an object is W = mgh, where 'm' is mass in kilograms, 'g' is the acceleration due to gravity (9.8 m/s2 on Earth), and 'h' is the height in meters.
If we take a 20-kg sack of potatoes and lift it 6.5m, we would calculate the work done as follows:
- W = mgh
- W = 20 kg imes 9.8 m/s2 imes 6.5m
- W = 1270 J
When we calculate this, we find that the closest answer to our calculation is B) 1300 J, which is slightly rounded from 1270 J. Therefore, the amount of work done to lift a 20-kg sack of potatoes vertically 6.5m is approximately 1300 J.
