Find the mass

  • Thread starter looi76
  • Start date
  • #1
81
0

Homework Statement


A pump with a power output of 600W raises water from a lake through a height of 3.0m and delivers it with a velocity of 6.0 ms^-1. what mass of water is removed from the lake in one minute?

Homework Equations


Kinetic Energy = 1/2*m*v²

The Attempt at a Solution


600 = 1/2*M*6.0²
M = 200kg
 

Answers and Replies

  • #2
279
0
You can't substitute 600W for the kinetic energy, because energy is measured in joules, not watts. Try and use [tex]P=F*V_{ave}[/tex].
 

Related Threads on Find the mass

  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
2
Views
2K
  • Last Post
Replies
2
Views
3K
  • Last Post
Replies
6
Views
5K
  • Last Post
Replies
10
Views
2K
  • Last Post
Replies
9
Views
13K
  • Last Post
Replies
11
Views
2K
  • Last Post
Replies
2
Views
7K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
8
Views
260
Top