Question

Astronauts on a distant planet toss a rock into the air. With the aid of a camera that takes pictures at a steady rate, they record the height of the rock as a function of time as given in the table below. (Do the following in a computer spreadsheet or programming environment. Your instructor may ask you to turn in this work.)

Time (s)	Height (m)		Time (s)	Height (m)		Time (s)	Height (m)
0.00	6.00		1.75	12.64		3.50	12.55
0.25	7.36		2.00	13.04		3.75	11.98
0.50	8.59		2.25	13.30		4.00	11.28
0.75	9.67		2.50	13.43		4.25	10.44
1.00	10.62		2.75	13.41		4.50	9.47
1.25	11.43		3.00	13.26		4.75	8.35
1.50	12.11		3.25	12.97		5.00	7.10

(a) Find the average velocity of the rock in the time interval between each measurement and the next.

(b) Using these average velocities to approximate instantaneous velocities at the midpoints of the time intervals, make a graph of velocity as a function of time.

(c) Does the rock move with constant acceleration?

Yes or No?   

If so, plot a straight line of best fit on the graph and calculate its slope to find the acceleration. (If not, enter 0, and "no direction".)

magnitude	The correct answer is not zero. m/s2
direction	---Select--- upward downward no direction

Answer 1

Here I am using average velocity equation