Home » Ask & Discuss » Physics. » General Physics « Back to Discussion

General Physics

New kid on the Block

Joined:	13 Jan 2012
Post:	2

13 Jan 2012 11:39:11 IST

0 People liked this

229

a car of weight 20000n climbs up a hill at a steady speed of 8m/s gaining a height of 120m

Physics

a car of weight 20000n climbs up a hill at a steady speed of 8m/s gaining a height of 120m in 100s. find work done

Share this article on:

Comments (2)

Bipin Dubey

Forum Expert

Joined: 23 Jan 2007

Posts: 7942

13 Jan 2012 17:27:51 IST

Like 0 people liked this

Since it moves with steady speed its kinetic energy remains constant.

Work done is the change in potential energy caused by change in height.

W = mgh = (20000N) x (120m)

= 2400000 J = 2400 kJ

Viraat Gupta

Forum Expert

Joined: 21 Jun 2011

Posts: 688

14 Feb 2012 12:56:49 IST

Like 0 people liked this

as used above .... work done = change in potential energy

Quick Reply

Reply

	Some HTML allowed.
	Keep your comments above the belt or risk having them deleted.
	Signup for a avatar to have your pictures show up by your comment
	If Members see a thread that violates the Posting Rules, bring it to the attention of the Moderator Team

Free Sign Up!

Preparing for IIT-JEE ?

Arihant Revision Package for IIT JEE - Books, Practice Tests + Rank Predictor

@ INR 1,995/-

For Quick Info

Find Posts by Topics

Physics.

Topics

9395

20091

3672

2186

7617

2827

2637

Mathematics.

Chemistry.

Biology

Institutes

Parents

Board

Fun Zone