Mrs. Wade puts a bucket of paint on top of a ladder. The bucket has a mass of 20 kg. The top of the ladder is 5 meters tall. How much potential energy does the bucket have?
a
100 J
b
980 J
c
40 J
d
cannot be determined
The potential energy of an object can be calculated using the formula:
Potential energy = mass x gravity x height
where the mass is in kilograms, gravity is 9.8 m/s^2 (acceleration due to gravity on Earth), and height is in meters.
Using this formula, we can calculate the potential energy of the bucket of paint:
Potential energy = 20 kg x 9.8 m/s^2 x 5 m = 980 J
Therefore, the potential energy of the bucket of paint is 980 J, which corresponds to option b.
To calculate the potential energy of an object, we can use the formula: potential energy = mass * gravity * height.
Given that the mass of the bucket is 20 kg and the height is 5 meters, we can plug these values into the formula:
Potential energy = 20 kg * 9.8 m/s^2 * 5 m
Calculating this expression:
Potential energy = 980 J
Therefore, the bucket of paint has 980 J of potential energy.
So, the correct answer is b) 980 J.
To calculate the potential energy of the bucket, we can use the formula:
Potential Energy = mass * gravity * height
First, we need to determine the value of gravity, which is approximately 9.8 m/s^2.
Next, we need to know the height at which the bucket is placed on the ladder. Since the top of the ladder is 5 meters tall, we can use this as the height value.
Plugging in the values into the formula:
Potential Energy = 20 kg * 9.8 m/s^2 * 5 m
Potential Energy = 980 J
Therefore, the correct answer is option b) 980 J.