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  • $\begingroup$ Related search. $\endgroup$
    – Qmechanic ♦
    Commented Mar 24, 2014 at 23:15
  • $\begingroup$ "why wouldn't that straight line be in the direction of acceleration..." What's wrong it is in the direction of acceleration. e.g pad (in which the object to be thrown is held) moves with a speed greater than that of the object. When the pad's speed lowers than that of the object the object starts to move in a straight line. compare the situation with a fast bowler of cricket about to ball after taking a long run up. The ball moves in a curved path untill the hand of the bowler achieves a speed less than that of the ball itself. $\endgroup$
    – user31782
    Commented Mar 27, 2014 at 5:01
  • $\begingroup$ "The direction of acceleration is the same direction for the propagation of inertia usually!?" Not usually, It is only the case when the appplied force is in the same direction as that of the propogation of inertia. Haven't you read Newton's laws? The direction of acceleration is always the same as that of the net Force acting on an object. $\endgroup$
    – user31782
    Commented Mar 27, 2014 at 5:04
  • 2
    $\begingroup$ This question bugged for almost 2 months. No teacher at my school was able to see what I was asking. After a few diagrams by myself, I was able to get it rightly. (Its about an year since...) @Neuneck provides the solution which I had thought. It, IMHO, is the right answer. $\endgroup$
    – user3459110
    Commented Mar 27, 2014 at 13:08
  • 1
    $\begingroup$ Possible duplicate of Why is centrifugal force considered fictitious, when it's the one that feels real to us when we are moving in a circle? $\endgroup$
    – TanMath
    Commented Oct 28, 2015 at 18:26