Hey I am doing some exam questions from a mechanics textbook and I am really confused I was just wondering if anyone could help me out The question is:
A train is uniformly retarded from 35ms to 21ms over a distance of 350m.
How do I find the deceleration?
And how do I find the total time to decelarate from 35ms with this retardation?
x is displacement.
The formula might be written in your textbook or class notes as (I assume you've actually looked in your textbook ....?)
Surely you can substitute some numbers into a formula and get an answer. I'm not going to do it - I've already done enough.
And what would help you more is going back and actually revising this material. You obviously have a textbook that is asking these questions - in that textbook are the formulae that you're expected to know.