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?
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.