You are Here: Home >< Maths

# OCR M1 Retake Help Watch

1. Hi guys, Im not sure how to do q.8 in Misc. Ex4, p.60 in the OCR M1 book. I would really appreciate somebody telling me how to do the question. I do know how to resolve and have gotten all the other ones in the Misc Ex right , but the equations I end up with are:

1) 1800cos20 + 1650 cosx - F ( resistive force) = 0.6 a ( R (horizontally))
2) 39200N ( weight 4000X 9.8) = R + 1650sinx + 1800sin20 ( R ( vertically))

In order to find out x, I know that I need to use equation 2, but there are too many variables in eq.2 to find out x, because I need to include R ( normal contact force).

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: December 30, 2010
Today on TSR

### Degrees to get rich!

... and the ones that won't

### Women equal with Men?

Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest
• ## See more of what you like on The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

• The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.