Register
The power expended when a 10 N barbell is raised 2. 0 m in 2s is
168k views
2 votes
The power expended when a 10 N barbell is raised 2. 0 m in 2s is

User LenaYan
by
7.2k points

1 Answer

3 votes

Work done = (force) x (distance)
= (10 N) x (2 m) = 20 joules .

Power = (work done) / (time to do the work)
= (20 J) / (2 sec)
= 10 joules/sec = 10 watts .
User Smartmouse
by
7.6k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.5m questions

12.2m answers

Other Questions

A snowball is launched horizontally from the top of a building at v = 16.9 m/s. If it lands d = 44 meters from the bottom, how high (in m) was the building?
What type of rock is the Haystack rock (igneous, Metamorphic, or Sedimentary)
what is a device that transforms thermal energy to mechanical energy
How many light sources do you know Pls list them
What is the minimum resistance which can be made using five resistors each of 1/5
Link Copied!