How do i answer this:

a point on a rotating turntable 20.0 cm from the center accelerates from rest to a final speed of 0.700 m/s in 1.75 s. at t = 1.25 s, find the magnitude and direction of (a) the radial acceleration, (b) the tangential acceleration,
and (c) the total acceleration of the point.

Part a)

Part b)

Part c)

Explanation:

initial speed of the turn table at t = 0 is given as

after t = 1.75 s the speed is given as

now the tangential acceleration is given as

Part a)

Now the speed of the disc after t = 1.25 s is given as

here we will have

now radial acceleration is given as

Part b)

tangential acceleration is given as

Part c)

total acceleration is given as

hèllo, sorry i really need some more points so if you need this qustion answered than retype it

the correct choice is a .

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