If s=ut + 1/2 at^2 , a) make a the subject of the expression b) make u the subject of the expression c) if s=10, t=2 and u=4 find the value of a

a) s=ut + 1/2 at2Firstly , take the ut to the left hand side of the equation in order to isolate the 1/2 at2.s-ut=1/2 at2 Then multiply both sides by 2 to leave just at2 on the right hand side.2s-2ut=at2Finally divide both sides by t2 to leave just a on the right hand side.a=(2s-2ut)/t2
b) Firstly, minus 1/2 at2 from both sides to leave just ut on the right hand side.s-1/2 at2=utThen divide both sides by t in order to get only u on the right hand side.(s-1/2 at2)/t =uThis can also be written as u=s/t - 1/2 at
c) Use the equation a= (2s-2ut)/t2Substitute in valuesa=(2(10)-2(4)(2))/(2)2a=(20-16)/4a=4/4a=1

FY
Answered by Freddy Y. Maths tutor

4610 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Show x^2 + 8x +15 = 0 in the form of (x+b)^2 +c (complete the square) and then solve the equation


A triangular prism has mass 900g, length 20cm and the triangle bases are equilateral and with side length 6cm. Find the density(g/cm^3) of the material the prism is made of.


what is the median, mode and mean?


Expand and simplify 3(m+4)-2(4m+1)


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences