Given a bloodstain with a length of 3.0 cm and a width of 1.5 cm, what is the angle of impact? (Use the formula: angle = arcsin(width/length))

• A. 60°
• B. 45°
• C. arcsin(1.5/3.0) = 30°
• D. 30°

Answer: (C)

Verified step by step guidance

1. Identify the given values: the length of the bloodstain is 3.0 cm and the width is 1.5 cm.
2. Recall the formula for the angle of impact, which is given by: \(\text{angle} = \arcsin\left(\frac{\text{width}}{\text{length}}\right)\).
3. Substitute the given values into the formula: \(\text{angle} = \arcsin\left(\frac{1.5}{3.0}\right)\).
4. Calculate the ratio inside the arcsin function: \(\frac{1.5}{3.0} = 0.5\).
5. Use the inverse sine function (arcsin) to find the angle whose sine is 0.5, which will give the angle of impact.