You are Here: Home >< A-levels

mechanics maths help

Announcements Posted on
TSR's new app is coming! Sign up here to try it first >> 17-10-2016
1. someone please explain why couln't you use suvat here?

Look at the mark scheme and question i attached below
2. for part 1 in the mark scheme why did they use the velocity only when the position was also given ? so why doesnt the position vector affect the initial speed ?
3. (Original post by Hard work)
someone please explain why couln't you use suvat here?
You might want to edit your screenshot so that your email isn't open as you can see your name if you care about that kind of thing
4. (Original post by Hard work)
for part 1 in the mark scheme why did they use the velocity only when the position was also given ? so why doesnt the position vector affect the initial speed ?
I haven't done M2 yet but i do know that SUVAT is derived under the assumption that acceleration is constant.

i'm also assuming the skydiver doesn't have a constant acceleration thus you can't use suvat
5. (Original post by Hard work)
someone please explain why couln't you use suvat here?

Look at the mark scheme and question i attached below
Acceleration is not constant.
6. (Original post by samb1234)
You might want to edit your screenshot so that your email isn't open as you can see your name if you care about that kind of thing

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
1. Oops, you need to agree to our Ts&Cs to register

Updated: April 30, 2016
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

How does exam reform affect you?

From GCSE to A level, it's all changing

Poll

All the essentials

Student life: what to expect

What it's really like going to uni

Essay expert

Learn to write like a pro with our ultimate essay guide.

Create a study plan

Get your head around what you need to do and when with the study planner tool.

Resources by subject

Everything from mind maps to class notes.

Study tips from A* students

Students who got top grades in their A-levels share their secrets