the speed time graph of the car is given in graph the car with 1000 kg what does oa and bc indicates
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Explanation:
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= 10−0
40−0
=4m/s 2
(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= 50−30
0−40
= 20 −40
=−2m/s 2
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