The Position Vector of a Particle Is R(t) A) A(1) = -36i - J + 8k
B) A(1)

question 71

Multiple Choice

The position vector of a particle is r(t) . Find the requested vector.
- $\text { The acceleration at } t = 1 \text { for } r ( t ) = \left( 3 t - 3 t ^ { 4 } \right) \mathbf { i } + ( 3 - t ) \mathbf { j } + \left( 4 t ^ { 2 } - 4 t \right) k$

• A) a(1) = -36i - j + 8k
• B) a(1) = -9i + 8k
• C) a(1) = 36i + 8k
• D) a(1) = -36i + 8k

---

Definitions:

Skin Maceration

The softening and breaking down of skin resulting from prolonged exposure to moisture.

Perianal Area

denotes the region surrounding the anus, which can be prone to various skin conditions and health issues.

Multiple Contusions

Multiple Contusions refer to numerous areas of bruising on the body, often resulting from blunt force trauma, indicating impacts to various body parts.