# math

posted by .

I need step by step explanation of the following problem. Using the lever system equation F1x=F2(d-x)solve the following problem: A screwdriver 9 in. long is used as a lever to open a can of paint. The tip of the screwdriver is placed under the lip of the can with the fulcrum 0.15 in. from the lip. A force of 30 lb. is applied to the other end of the screwdriver. Find the force on the lip of the can. Very confusing to me please explain. Thanks!!!!!!!!!!

• math -

The force on the handle is multiplied by the ratio of the distance from the fulcrum.

The product of force*distance for each side is the same.

So, plug in the numbers and you will see that since the handle is 60 times as long as the tip, the force applied to the tip is 30 times as great.

F1 * .15 = 30 * 9
F1 = 30*9/.15 = 540

• math -

This answer is completely wrong! F1=1770lbs., according to the answer section in the book Aufmann and Lockwood.

## Similar Questions

1. ### math,algebra II

I need someone to explain to me step by step the process of this problem its in my book as an example but i am not understanding it. Ive researched the explanation of the ECHELON METHOD...BUt i am not seeingit...this is the problem …
2. ### Math

Hi! I need help with the following math problem: A building has 4 columns, each of which is 15 ft high and has a circumference of 1 2/3 yards. 1. Find the lateral surface area of the 4 columns. 2. How much will it cost to paint the …
3. ### Algebra 2

I need to know how to solve quadratic equations by factoring. Can you so a step by step explanation to this sample problem?
4. ### Algebra II

Solving the formula for the indicated variable. I=prt,for r I need help knowing how to solve this problem step by step. its easier with numbers and a fraction in the problem but this problem just threw me off.......HELP PLEASE!!!!
5. ### algebra

The area of the wall you are going to paint is 50 feet2. If the width is half the height, what are the dimensions of the wall?
6. ### Physics

A force of 60 N is exerted on one end of a 1.0-m-long lever. The other end of the lever is attached to a rotating rod that is perpendicular to the lever. By pushing down on the end of the lever, you can rotate the rod. If the force …
7. ### physics

A 20.7 cm screwdriver is used to pry open a can of paint. If the axis of rotation is 2.25 cm from the end of the screwdriver blade and a force of 29.3 N is exerted at the end of the screwdriverâ€™s handle, what force is applied to …
8. ### Calculus

Hello, I really need help on these two homework problem. >< In problem #1, I believe it is related to the exponential functions and their derivatives section...in Calculus II?
9. ### Algebra 2

I need step by step on how to solve this problem plz help I've been trying to figure it out for like an hour. Solve the system using the elimination method. 4x-y+2z=-18 -x+2y+z=11 3x+3y-4z=44
10. ### Math Help ASAP PLZ!!!!!

I already got the following problem wrong, so I just need help understanding HOW to get the correct answer. "In order to get a certain shade of blue paint, a mixer must have 5 parts white paint to 3 parts blue. If 4 gallons of paint …

More Similar Questions