Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
ashna
Group Title
How much work is done by a coolie walking on a horizontal platform with a load on his head ? justify .
 2 years ago
 2 years ago
ashna Group Title
How much work is done by a coolie walking on a horizontal platform with a load on his head ? justify .
 2 years ago
 2 years ago

This Question is Closed

ashna Group TitleBest ResponseYou've already chosen the best response.0
can yu explain ?
 2 years ago

akash123 Group TitleBest ResponseYou've already chosen the best response.1
dw:1348894242952:dw
 2 years ago

akash123 Group TitleBest ResponseYou've already chosen the best response.1
N is the force applied by coolie on the load...right?
 2 years ago

akash123 Group TitleBest ResponseYou've already chosen the best response.1
dw:1348894348026:dw
 2 years ago

akash123 Group TitleBest ResponseYou've already chosen the best response.1
now...definition of work= F . (Displacement) it's a dot product....right?
 2 years ago

akash123 Group TitleBest ResponseYou've already chosen the best response.1
dw:1348894463777:dw
 2 years ago

akash123 Group TitleBest ResponseYou've already chosen the best response.1
work done by coolie = N *( displacement) * cos 90'
 2 years ago

ashna Group TitleBest ResponseYou've already chosen the best response.0
yes 0 , okay ty :)
 2 years ago

sam291 Group TitleBest ResponseYou've already chosen the best response.0
But if he wasn't exerting a force with the help of friction, on the platform, in the opposite direction from where he's going, then he wouldn't move forward. And the force in the opposite direction caused by friction will be greater because of the load on his head. Am I wrong?
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.