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(t-sint)i = (1-cost)i = (sint)i
(1-cost)j = (sint)j = (cost)j
f(x) f'(x) f''(x)

now??

what is dot product

ohk got it...so how to get minimum nd maximum values

agree

** 2(1 - (-1)) or 0 and 4

plz carry on

a= < sin t , cos t>
can you find its dot product (that gives you |a|^2 )

yes it is 1

sin^2t+cos^2t = 1

1^2 = 1

am i on track?

yes

the magnitude of the acceleration is always 1, but its direction is changing.

oh ya but we do not need to care about direction...right?

ok so how to do rest of the part

ok so what is the vector function that models the behavior