Question

if a laptop of mass 1.4 kg is lifted to a table of height 0.8 m, how much gravitational potential energy is added to the laptop?

a. 8.8 j
b. 1.1 j
c. 11.0 j
d. 19.5 j

Explanation:

Step1: Recall the formula for gravitational potential energy

The formula for gravitational potential energy is \(U = mgh\), where \(m\) is the mass, \(g\) is the acceleration due to gravity (\(g = 9.8\space m/s^{2}\)), and \(h\) is the height.

Step2: Substitute the given values into the formula

Given \(m = 1.4\space kg\), \(h=0.8\space m\), and \(g = 9.8\space m/s^{2}\).

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Answer:

C. 11.0 J