JAMB Physics 2018 Objective — Question 6
Question 6 of 38 from the Joint Admissions and Matriculation Board (JAMB) Physics 2018 Objective paper, with the correct answer and a full explanation.
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Calculate the instantaneous velocity at 7s of a rocket undergoing uniformly accelerated motion if the position is given by s=5t+12t²
- A. 173m/sCorrect
- B. 149m/s
- C. 89m/s
- D. 65m/s
Explanation
v = ds/dt = 5+24t. At t=7: v = 5+24(7) = 5+168 = 173m/s.
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