Gce Model Questions Vol1 2021 Physics Question 42
Practice objective / multiple choice question 42 from the 2021 Gce Model Questions Vol1 Physics examination.
A car starts from rest and accelerates with a time‑dependent acceleration \(a(t)=k t\) (where \(k\) is constant). After 5 s its speed is 20 m s\(^{-1}\). The driver then applies a constant braking deceleration of \(4.0\;\text{m s}^{-2}\) until the car comes to rest. Determine (a) the total distance travelled from the start until the car stops, and (b) the average speed over the whole motion.
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About This Question
This is Gce Model Questions Vol1 2021 Physics Question 42. It is one of the objective questions from the 2021 Gce Model Questions Vol1 Physics examination.
Difficulty level: Medium .
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