In case picture is messed up, they are labled in order as a,b,c,d,e,f,g,h. Also,

Question

In case picture is messed up, they are labled in order as a,b,c,d,e,f,g,h. Also,   A is: 8m/s and 6kg. B is: 2 m/s and 12kg. C is: 6m/s and 4 kg. D is: 2m/s and 8kg. E is: 4 m/s and 12 kg. F is: 8m/s and 4 kg. G is 4 m/s and 8 kg. H is: 6m/s and 6 kg.

The figures above depict eight cannons shooting shells into the air. All of the cannons are aimed atthe same angle of 35 degrees. All of the cannons are identical. The shells are all the same size and shape, but the masses of the shells, as well as their speeds asthey leave the cannons, are different. The values of these variables are specified in teh figures. Rank these situations from highest to loweston teh basis of the acceleration at the highest point reached by the shells. (Assume for this situation that the effect of air resistance can be ignored.)

Highest 1_______2_______3______4_____5____6____7____8____Lowest

Or, all of the shells have the same (nonzero) acceleration at the top.______

Or, all of the shells have zero acceleration at the top._____

Explain your reasoning.

Explanation / Answer

at the highest point in the air, or at any point in the air for that matter, what is the acceleration acting on an object? Ask yourself, what force is acting on all these objects at that moment, and how do those initial conditions affect that force?

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