You are Here: Home >< Maths

# Mechanics AQA kinetics help watch

1. A van travelling at 40mph skies to a halt in a distance of 15m. Find the acceleration of the van and the time taken to stop, assuming the deceleration is uniform and the van travels along a straight line (Assume 1mile=1600m)
How would you work this out?
thankyou
2. (Original post by navpahal)
A van travelling at 40mph skies to a halt in a distance of 15m. Find the acceleration of the van and the time taken to stop, assuming the deceleration is uniform and the van travels along a straight line (Assume 1mile=1600m)
How would you work this out?
thankyou
I would turn the 40 mph into m/sec and use SUVAT. Try it and post your working.
3. (Original post by Muttley79)
I would turn the 40 mph into m/sec and use SUVAT. Try it and post your working.
it’s the U/40mph i’m findinf hard to convert. since it says 1 mile=1600m
if i googled the conversion it says something else
4. (Original post by navpahal)
it’s the U/40mph i’m findinf hard to convert. since it says 1 mile=1600m
if i googled the conversion it says something else
So in an hour 40 mph is the same as 40 x 1600 metres/hour

so then change into metres/sec

### Related university courses

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: February 10, 2018
The home of Results and Clearing

### 3,267

people online now

### 1,567,000

students helped last year
Today on TSR

Hang on, have Edexcel's come out already?

### University open days

1. SAE Institute
Animation, Audio, Film, Games, Music, Business, Web Further education
Thu, 16 Aug '18
2. Bournemouth University
Fri, 17 Aug '18
3. University of Bolton
Fri, 17 Aug '18
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