Help! Physics HW Due Apr 7 - 4 Qs Left!

  • Thread starter Thread starter banana44
  • Start date Start date
  • Tags Tags
    Physics
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
Sign up Log in
6 replies · 2K views
banana44
Messages
7
Reaction score
1
very confusing :(

i have a big assingment due april 7th , i have answered all the questions but 4 are left. can anyone help me... pleaseee :D

1. Terry uses a force of 10.0 N to push her CD player a distance of 0.50 m across a table. Calculate the amount of work she does on the CD.

2. Tony pulls his wagon a distance of 15 m across the garden while applying a force of 160 N on the wagon’s handle. If the handle makes an angle of 400 with the horizontal, how much work did Tony do on the wagon?

3. What is the kinetic energy of a 1000 kg car traveling at 25 m/s?

4. A 65 kg diver is standing on a diving platform 10.0 m above the water. What is the gravitational potential energy of the diver with respect to the water’s surface?
 

Discussion

Physics news on Phys.org
What's the definition of Work?
 
Sourabh N said:
What's the definition of Work?

Energy, work and power
 
banana44 said:
Energy, work and power
Are your just typing random words out of your textbook?

What is the mathematical definition of work? i.e. write down an equation.
 
Hootenanny said:
Are your just typing random words out of your textbook?

What is the mathematical definition of work? i.e. write down an equation.

well if i knew the equations , i would be able to solve it.
i just know it has something to do with work-energy theorem