**Answer:**

(a). The initial speed of the arrow is 49.96 m/s.

(b). The angle is 39.90°.

**Explanation:**

**Given that,**

Horizontal distance = 230 m

Time t = 6 sec

Vertical distance = 16 m

**We need to calculate the horizontal component **

**Using formula of horizontal component**

Put the value into the formula

.....(I)

**We need to calculate the height **

**Using vertical component**

Put the value in the equation

.....(II)

Dividing equation (II) and (I)

**(a). We need to calculate the initial speed**

**Using equation (I)**

Put the value into the formula

**(b). We have already calculate the angle.**

**Hence, (a). The initial speed of the arrow is 49.96 m/s.**

**(b). The angle is 39.90°.**