Answer to Question #98958 in Physics for sierra gibbs

Question #98958

In an experiment to determine the acceleration due to gravity, one student drops a tennis ball out of the school’s third floor window. Another student starts a timer when the first student lets go and stops the timer when the ball hits the ground. They conduct the experiment once and record the data. Is this a valid experiment, why or why not?

Expert's answer

Because only once may be biased by pushing the object or due to air or some other reason.

Hence to get accurate results there must be repitition of trials.

Answer: No, it is not valid because they did not have any repeat trials.