A bucket that weighs 4 lb and a rope of negligible weightare used to draw water from a well that is 80 ft deep. Thebucket is filled with 40 lb of water and is pulled up at a rateof 2 ft /s , but water leaks out of a hole in the bucket at a rateof 0.2 lb / s . Find the work done in pulling the bucket to thetop of the well.
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
A bucket that weighs 4 lb and a rope of negligible weight
are used to draw water from a well that is 80 ft deep. The
bucket is filled with 40 lb of water and is pulled up at a rate
of 2 ft /s , but water leaks out of a hole in the bucket at a rate
of 0.2 lb / s . Find the work done in pulling the bucket to the
top of the well.
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