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Physics AS Query

Properly stuck on this 6 mark question, anyone able to give some guidance and help?
'A ball is thrown from one person to another. It is seen to have the following path ( a parabola). Use your knowledge of the trajectory of a body moving under constant acceleration in two dimensions to explain the shaoe of the path observed.'
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Avatar for Kyx
Kyx
6
Original post by Btec certified
Properly stuck on this 6 mark question, anyone able to give some guidance and help?
'A ball is thrown from one person to another. It is seen to have the following path ( a parabola). Use your knowledge of the trajectory of a body moving under constant acceleration in two dimensions to explain the shaoe of the path observed.'


You have to mention that the horizontal velocity does not change, but the vertical component does, since it is acted on by a force (gravity).
Original post by Kyx
You have to mention that the horizontal velocity does not change, but the vertical component does, since it is acted on by a force (gravity).


Thanks for your help mate! Question is worth 6 marks however, could you possibly expand on that?
Original post by Btec certified
Thanks for your help mate! Question is worth 6 marks however, could you possibly expand on that?


Like the guy above said, make points on how the horizontal velocity is independent from the vertical. Hence, no accelaration on the horizontal (ignoring drag) but the ball decelerates as it rises in the vertical component, since gravity is acting in the opposite direction. Then reaches a peak height, where velocity is zero, then accelerates downwards due to gravity.
Reply 4
Avatar for derpz
derpz
5
Original post by Btec certified
Properly stuck on this 6 mark question, anyone able to give some guidance and help?
'A ball is thrown from one person to another. It is seen to have the following path ( a parabola). Use your knowledge of the trajectory of a body moving under constant acceleration in two dimensions to explain the shaoe of the path observed.'


Think about projectile motion, and how you have to resolve the initial vector (e.g. No vertical velocity halfway etc)


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