Neco 2023 Physics Question 3

Practice objective / multiple choice question 3 from the 2023 Neco Physics examination.

Neco 2023 Physics Objective / Multiple Choice Hard Difficulty

Question 3 NECO • 2023 • PHYSICS • objective

A student drops a steel ball from rest and records the distance fallen \(s\) (in metres) at successive times \(t\) (in seconds) as follows: \( (0.0,0.0), (0.5,1.2), (1.0,4.8), (1.5,10.8), (2.0,19.2), (2.5,30.0) \). Assuming the motion follows \(s=\frac{1}{2}gt^{2}\) at early times, use the first three data points to estimate the acceleration due to gravity \(g\). Then, using the data for \(t\ge1.5\ \text{s}\), determine the terminal velocity \(v_{t}\) of the ball by fitting a straight line to \(s\) versus \(t\). Give \(g\) in \(\text{m\,s}^{-2}\) and \(v_{t}\) in \(\text{m\,s}^{-1}\).

Correct Answer A. g = 9.6 m/s^2; v_t = 19.2 m/s

B. g = 10.2 m\/s^2; v_t = 21.5 m\/s

C. g = 9.8 m\/s^2; v_t = 20.0 m\/s

D. g = 8.9 m\/s^2; v_t = 18.0 m\/s

Correct Answer

Correct Option:

g = 9.6 m/s^2; v_t = 19.2 m/s

This is Neco 2023 Physics Question 3. It is one of the objective questions from the 2023 Neco Physics examination.

Difficulty level: Hard .

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