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freeeeee

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For b)iii) there's two possible intervals theta can lie in in order to satisfy the distance requirement, but only one satisfies the height.

my angle for (iii) is same as you, something like 60 something to 80 something for theta
 

rhino16

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if u did the projectile question in radians and inevitably got the wrong answer, would u get any marks
 

hatennis123

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Depends on whether you converted the 360km/h to km/minute or converted the 5 minutes into hours.
I think I converted 5 minutes into hours, so it would be 1/12 hours. u becomes 360*1/12=30km per hr. But I got the same expression (dr/dt) as the suggested answer, however, mine was with unit km per hr. Did I do something wrong?
 
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freeeeee

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so what is the correct angle lol? im assuming its the terry lee one... so i probably got it wrong
 
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JAKEHARB

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easy question can't believe it thought it would be so much harder
 

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