Posted by **Gillianne** on Sunday, October 2, 2011 at 9:48am.

a trench mortar fires a shell at an angle of 30 degrees with the horizontal and with a speed of 500 m/s. find its range and the maximum height it attains?

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**drwls**, Sunday, October 2, 2011 at 10:26am
Range = (Vo^2/g)*sin(2*30)

= 22,092 meters

Max height H:

g H = (Vo*sin30)^2/2 = Vo^2/8

H = Vo^2/(8 g) = 3189 m

- physics -
**drwls**, Sunday, October 2, 2011 at 10:35am
The numbers I just calculated greatly exceed the range and max height of real "trench mortars". This is apparently because the launch speed you were provided is much too high.

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