Question

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Answer 1

Answer:

(i) OA represents uniform acceleration 

(ii) AB represents constant speed. 

(iii) BC represents uniform retardation. 

(iv) Acceleration of car from O to A= slope of line OA

a=10−040−0=4m/s2

(v) Acceleration of car from A to B is zero as it has uniform speed during this time. 

(vi) Retardation of car from B to C= slope of line BC

a=50−300−40=20−40=−2m/s2 

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