⦁a speed skater increases her speed form 10 m/s to 12.5 m/s over a period of 3 seconds while coming out of a curve of 20 m radius. what are the magnitudes of her radial, tangential and total accelerations as she leaves the curve?

Explanation:

Tangential acceleration = ( 12.5 - 10 )/ 3

a_t= .833 m /s²

radial acceleration

= v² / R

12.5² / 20 ( 12.5 m/s is the velocity when it leaves the curve )

a_r= 7.81 ms⁻²  

Total acceleration √( .833² + 7.81²)

=  √( 61.6939)

= 7.85 m/s⁻

not moving. pos accel,

i think the answer is a and b

i wish you luck