Title: description questions
Course: Physics copy 1

Q: Given your results from both investigations, which of the following equations best combines both relationships?
- $$R=k\cdot v_o^2 \cdot sin(2 \theta)$$ where k is a constant. (That's correct. The value of k can be derived mathematically.)
- $$R=k \cdot v_o \cdot sin (\theta)$$ where k is a constant. (No. Nice try, but the range varies as the square of the velocity.)
- $$R=-(v_o-45)^2+k sin(\theta)$$ where k is a contant. (No.)
- $$R=-(v_o - 45)^2 + k \cdot sin(2\theta)$$. (No.)
A: $$R=k\cdot v_o^2 \cdot sin(2 \theta)$$ where k is a constant.