When the ball is at location A what is the direction of the Δv vector?
When the ball is at location A what is the direction of the Δv vector?
B?
C?
Picture & compass:
Picture: http://www.webassign.net/physlabs1/images/4-post-0...
Directions: http://www.webassign.net/physlabs1/images/4-post-0...
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If the picture describes regular circular motion, then the acceleration Δv always points towards the cente (if there were no such acceleration, then the ball would leave the circle).
So, at point A it points in the direction 1, at point B in the direction 7 and in the direction 4 at point C