# PROBLEM 10 A point describes a circumference according to law s (t) = t³ + 2t² where s measured meters along the circumference and, in seconds. If a total acceleration of the point is 16 2 m / s2, when t = 2 s.calculate the radius R of the circumference?

##### 1 Answer

Apr 15, 2018

#### Explanation:

The acceleration vector (radial and tangential) is:

Computing derivatives:

CORRECTING TYPO IN QUESTION:

Solves as: