Sara H.

asked • 11/02/20

A shell is fired from the ground with an initial speed of 1.50 ✕ 10^3m/s at an initial angle of 45° to the horizontal. (a) Neglecting air resistance, find the shell's horizontal range.

1 Expert Answer

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Jacob F. answered • 11/02/20

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Experienced Mechanical Engineering Tutor

Sara H.

hey the video helps a ton but towards the end, its hard to read your hand writing. is there anyway you can help out with this?
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11/02/20

Jacob F.

Sure! The two equations that I arrived at towards the end of the video are: d = V_0 * Cos(theta) * t and t_1,3 = 2 * V_0 * Sin(theta) / g (**Note the time from points 1 to 2 is equal to half the time from points 1 to 3, therefore I multiplied equation t_1,2 by 2 to give us the total flight time) The answers are t_1,3 = 213.3 s and plugging t into the first equation I got: d = 2.30 * 10^5 m I'll be sure to try and write cleaner/bigger next time so that it is easier to read.
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11/03/20

Sara H.

Great! Again thank you so much for the help:)
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11/03/20

Jacob F.

No problem! :)
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11/03/20

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