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29 November, 04:13

Determine whether the following statements are true and give an explanation or counterexample.

(A) If the acceleration of an object remains constant, its velocity is constant.

(B) If the acceleration of object moving along a line is always 0, then its velocity is constant.

(C) It is impossible for the instantaneous velocity at all times a (D) A moving object can have negative acceleration and increasing speed.

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  1. 29 November, 05:58
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    Explanation: (A) if a body is accelerating then it's velocity can't be constant since an object is said to be accelerating if it is changing velocity (B) if the acceleration of an object moving along a line is 0 then it's velocity will be constant since there is no change in direction or speed (C) No. it is not possible for a moving body to have an instantaneous velocity at all times since instantaneous velocity is the velocity of a body at a certain instant of time ... (D) Yes a moving object can have a negative acceleration and increasing speed, it can also have a positive acceleration with decreasing speed.
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