I also tried that.
2.7% of 3.76 is 0.10, so the two velocities are 3.66 and 3.86.
I found the respective ranges, 137cm and 152cm. subtracted the two to get 15cm then divided by 2 to find the uncertainty, which was 7.5. Plugged it in, still not right. Am i doing things wrong?
Homework Statement
Students decide to measure a projectile's range for an initial projectile angle of 45°. This angle has many advantages, not the least being that since the expression for the range is proportional to the sine of twice this angle, errors in determining the angle do not...