The Student Room Group

M1 help needed

Hi,

Just a quick question - getting to the tail end of M1 now and just trying to clear a few things up. My main issue: caravans. Please can someone help with this question? Can you explain what you're doing clearly as you go through... I'm sure I'll get there, just a little lost for the moment!

Here's the question:

A car of mass 1200 kg pulls a trailer of mass 500 kg up a road inclined at an angle of theta to the horizontal, where sin(theta) = 0.1. The resistance to motion for both car and trailer is 0.15 N per kg. Find the tractive force developed by the engine and the tension in the coupling if the car and trailer are a) travelling at constant speed, b) decelerating at ½m/s^2.

Thanks
Reply 1
Draw a diagram first of all with all of the forces on it and you will find these questions a lot easier

Quick Reply

Latest