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Homework Statement
A point on a rotating turntable 20.0 cm from the center accelerates from rest to a final speed of 0.700m/s in 1.75s. (a) At
t = 1.25s, find the magnitude and direction of the radial acceleration, (b) the tangential acceleration, and(c) the total acceleration of the point.
Homework Equations
[tex]a_t=\frac{v_f-v_i}{t}[/tex]
[tex]a_c=v^2/r[/tex]
The Attempt at a Solution
[tex]a_t=0.4m/s^2, t=1.25s→a_c=1.25m/s^2[/tex]
I don't know how to find the total accelleration, are the components of the vector [tex]a^→=(a_c, a_t)=(1.25, 0.5)m/s^2[/tex]??