You are Here: Home

# Suvat Q

Announcements Posted on
Take our survey to be in with the chance of winning a £50 Amazon voucher or one of 5 x £10 Amazon vouchers 28-05-2016
1. Would appreciate if someone could help on this suvat question, part 3.

A particle P is projected vertically downwards from a fixed point O with initial speed 4.2ms−1, and takes 1.5 s to reach the ground. Calculate
(i) the speed of P when it reaches the ground,
(ii) the height of O above the ground,
(iii) the speed of P when it is 5m above the ground.

I'm stuck on the third part of this question.
I got S as 5 , u as 4.2 , v as v , a as 9.8 .

V^2=U^2+2as , v= root(4.2^2+98) , v=10.7 which is wrong

Thanks , saw where the error was
2. Unless O is 10m above ground, the s in part iii should not be 5.

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
your full birthday is required
1. Oops, you need to agree to our Ts&Cs to register

Updated: May 28, 2012
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:
Today on TSR

### Don't be a half-term hermit

How to revise this week and still have a life

Poll
Useful resources

## Make your revision easier

### Maths Forum posting guidelines

Not sure where to post? Read here first

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams

Can you help? Study help unanswered threads

## Groups associated with this forum:

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