Question

5) A person holds a 1.7 kg bucket and lets it move down at

constant speed 75 cm to the floor.
What is the work done on the bucket by the person?

Answer 1

12.5J

Step-by-step explanation:

Given parameters:

Mass of bucket = 1.7kg

Height = 75cm = 0.75m

Unknown;

Work done on the bucket by the person = ?

Solution:

To solve this problem, we use the work done equation;

Work done = force x distance = mgh

m is the mass

g is the acceleration due to gravity

h is the height

Now, insert parameters and solve ;

Work done = 1.7 x 9.8 x 0.75 = 12.5J