Q14 (2 Viewers)

[freeeeee]

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]

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

 

[hatennis123]

what is the unit for c)ii)?

 

[HeroicPandas]

what is the unit for c)ii)?

km/min

 

[hatennis123]

km/min

Why isn't it km/h? That is what I was thinking in the test.

 

[chriss95]

It can be either. As long as you get the right answer.

 

[hatennis123]

It can be either. As long as you get the right answer.

Oh, alright. Thanks. I hope the unit doesn't matter much.

 

[Nooblet94]

Why isn't it km/h? That is what I was thinking in the test.

Depends on whether you converted the 360km/h to km/minute or converted the 5 minutes into hours.

 

[hatennis123]

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?

 

[get_back23]

fkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk

 

[freeeeee]

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

 

[JAKEHARB]

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