Which of the following statements is true about the scientific process?

the hypothesis is always supported in the end.

you can change the hypothesis if the experiment is not supporting it.

your hypothesis must be testable.

you can change the data if it doesn’t support the hypothesis.

Asailboat is traveling to the right when a gust of wind causes the boat to accelerate leftward at 2.5m/s2 for 4s. after the wind stops, the sailboat is traveling to the left with a velocity of 3.0m/s.assuming the acceleration from the wind is constant, what was the initial velocity of the sailboat before the gust of wind? answer using a coordinate system where rightward is positive.