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I found mistake in the 2D Kinematics Notebook. In FA Qs 22 the answer says D (7.7m/s^2) but the answer should be 1.5m/s^2. 7.7m/2^2 is a result of forgetting to square T in the equation a=4(pi^2)r/T^2.
Thank you. It is fixed now.
The unit plan references a projectile motion lab (marble launcher). Is this lab on this website somewhere?
I just posted two labs for this chapter. There are two extra files visible only for teachers. They include the solution to the labs.