What is the initial potential energy?
At the initial position, the object has “potential energy”, which is energy associated with a certain position. Potential energy is assigned the letter U. The unit of potential energy is the same as the unit for work and kinetic energy, the Joule (J).
What are the initial and final potential energies?
Use the height and mass you measured along with 9.8 m/s2 as the constant for gravity. The result will be your initial potential energy. Determine the object’s final height and mass. This number will be your final potential energy.
How do you solve man and work questions?
Solution 1:
- As 12 men complete the job in 24 days, the work amount is 12×24=288 mandays.
- For this group of men the total work amount is 288 man days.
- Thus if 12 men and 12 women work together for a day, it is equivalent to (12+24)=36 men working on the job for 1 day.
How do you calculate time given work?
To calculate work done in a given time in general if a person A completes a piece of work in a ‘n’ days, then A’s one day work = 1/n. If a man takes 10 days to complete a piece of work, then according to the unitary method work done in one day = 1/10.
What is the five step strategy for solving word problems?
5 Steps to Word Problem Solving
- Identify the Problem. Begin by determining the scenario the problem wants you to solve.
- Gather Information. Create a table, list, graph or chart that outlines the information you know, and leave blanks for any information you don’t yet know.
- Create an Equation.
- Solve the Problem.
- Verify the Answer.
What are the three important things to remember in solving word problems?
3-Step System
- Read: Read the problem and decide what the question is asking. Read the problem 2 times or more.
- Plan: Think about what the story is asking you to do.
- Solve: What strategy could you use to find the missing information: addition, subtraction, multiplication, or division?