Question

the object has a mass of 9.0 kg. what is the potential energy of the object at point a? g = 10.00 m/s²

Explanation:

Step1: Identify the formula for gravitational potential energy

The formula for gravitational potential energy is \( PE = mgh \), where \( m \) is mass, \( g \) is acceleration due to gravity, and \( h \) is height.

Step2: Determine the values of \( m \), \( g \), and \( h \)

From the problem, \( m = 9.0\ \text{kg} \), \( g = 10.00\ \text{m/s}^2 \). From the graph, the height \( h \) at point \( A \) is \( 4\ \text{m} \).

Step3: Substitute the values into the formula

Substitute \( m = 9.0\ \text{kg} \), \( g = 10.00\ \text{m/s}^2 \), and \( h = 4\ \text{m} \) into \( PE=mgh \):

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Answer:

360 J