At t=0, a different ball is dropped from rest. Until t=0.20s, this bal

1.	At t=0, a different ball is dropped from rest. Until t=0.20s, this ball has a constant acceleration equal to the acceleration of free-fall. After t= 0.20s, its acceleration decreases.(i) State the value of the acceleration of free-fall(ii) Determine the speed of the second ball at t=0.20s(iii) draw the speed-time graph for the second ball from t=0 to t=0.28s.
Answer» Answer: t=0, a different ball is dropped from REST. Until t=0.20s, this ball has a constant acceleration equal to the acceleration of free-fall. After t= 0.20s, its acceleration decreases. (i) STATE the value of the acceleration of free-fall

At t=0, a different ball is dropped from rest. Until t=0.20s, this ball has a constant acceleration equal to the acceleration of free-fall. After t= 0.20s, its acceleration decreases.(i) State the value of the acceleration of free-fall(ii) Determine the speed of the second ball at t=0.20s(iii) draw the speed-time graph for the second ball from t=0 to t=0.28s.

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Answer:

t=0, a different ball is dropped from REST. Until t=0.20s, this ball has a constant acceleration equal to the acceleration of free-fall. After t= 0.20s, its acceleration decreases.

(i) STATE the value of the acceleration of free-fall

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