Variable Acceleration 4 • Further maxima problem • Mech1 Ex11C • 🚀

Edexcel Applied Year 1 - Mechanics

Thurs 30/1/20

[t.o]

when calculating the max/min displacement or velocity, do we have to check if the y-intercept gives us a larger value, like we had to do when looking for the maximum speed? and if not why do we not have to? sorry for all the questions lmao, and thanks for another great video! you're honestly saving my maths a level

[yankilou]

for part (b), because the value of t lies between 0 and 4, can I say t cube is non-negative instead of positive? Cuz if t=0. t cube will be 0.