A 5 kg object is lifted 10 meters vertically upward. What is the work done against gravity? (Assume g=9.8m/s²)Select one:a.490 Jb.100 Jc.50 Jd.980 J
Question
A 5 kg object is lifted 10 meters vertically upward. What is the work done against gravity? (Assume g=9.8m/s²)Select one:a.490 Jb.100 Jc.50 Jd.980 J
Solution
The work done against gravity can be calculated using the formula:
Work = mass * gravity * height
Given in the problem, we have:
mass (m) = 5 kg gravity (g) = 9.8 m/s² height (h) = 10 m
Substituting these values into the formula, we get:
Work = 5 kg * 9.8 m/s² * 10 m = 490 J
So, the correct answer is a. 490 J.
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