Question

Which of the following X-Y tables agrees withthe information in this problem?A missile is moving 1810 m/s at a 20.0° angle. It needsto hit a target 29,500 m away in a 65.0° direction in9.20 s. What acceleration must its engine produce?A)XYB)хYC)XYVi1700V1700619V:1700619619?Vp?ViaVEa? ?Ax 12500 26700t 9.20 9.20Ax 12500 26700a? ?Ax 12500 26700t 8.65 3.15t9.209.20

Answer 1

Recall the following formula for a uniformly accelerated motion:

`\Delta x=v^{}_it+(1)/(2)at^2`

Isolate a from the equation:

`a=(2)/(t^2)(\Delta x-v_it)`

From the formula, notice that a is the unkown variable and that the final velocity does not play a role on solving the problem. In both directions (X and Y), the time must be the same (9.20s), and the rest of the information on the tables is the same.

Therefore, the table which best represents te problem, is:

`\text{Option B}`