Recent content by cyberhev

Yes I have it, thank you, my transposition of equations knowledge is in there, but its 15 years or so since I used it! I often write the suvat list out, i find it very helpful.

If I solve that equation with 2a. I did the following 45x45-0x0, divided by 12 = 168.75 x 2 =337.5. Is this the correct acceleration?

That is what i have so far, I am just not sure where the 2 goes so you just get a on its own, I was wondering the 2 then moves to the side of s to become1/2s.

Homework Statement Hi all, the question for revision is; A car of mass 600kg traveling at 45m/s comes to rest in 12m when the brakes are applied. What is the average force exerted by the brakes? Homework Equations Force = mass x acceleration V^2=u^2 +2as The Attempt at a Solution I know I...

Thank you! Yes it was a typo! I am right that even if this question states initial velocity is 40m/s the actual value of u in this question is zero? Also my transposition of this equation works out to be V^2-u^2 divided by 2a=s?

Homework Statement Height reached by a ball if it is thrown vertically upwards with an initial velocity of 40m/s Homework Equations Using V^2=u^2+2as The Attempt at a SolutionI have been told to ignore air resistance and let g =9.8 m/s. Any help anyone?