The following drawings indicate the motion of a ball subject to one or more forc

Question

The following drawings indicate the motion of a ball subject to one or more forces on various surfaces from left to right. Each circle represents the position of the ball at succeeding instants of time. Each time-interval between successive positions is equal. Rank each case from the highest to the lowest acceleration, based on the drawings. Assume all accelerations are constant and use the coordinate system specified in the drawing. Note: Zero is greater than negative acceleration, and ties are possible. Highest 1 2 3 4 5 6 Lowest Or, all have the same acceleration. Please carefully explain your reasoning. How sure were you of your ranking? (circle one) Basically Guessed Sure Very Sure 1 2 3 4 5 6 7 8 9 10 4 D. Schramme, C. Fang, B. Speers, C. Hieggelke, D. Maloney, T. O'Kuma Ranking Task Exercises in Physics: Student Edition 4

Explanation / Answer

We know that : .               Velocity (v) = Distance travelled / time . As the time is constant , velocity depends on distancetravelled From the Diagram given : .   [ Velocity on Plane A   = - ( velocity on plane F) ] >   Velocity on plane D >  Velocity on . plane on D   = Velocity on planeB   > Velocity on plane E . Hope this helps u!

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