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# M1 question watch

1. Can someone help me with this question? I would just like a guide, no answers please

In this question take g to be 10m/s^2. A catapult projects a small pellet at speed 20m/s and can be directed at any angle to the horizontal.
(i) Find the range of the catapult when the angle of projection is
(a) 30 (b) 40 (c) 45 (d) 50 (e) 60
2. (Original post by TobyReichelt)
Can someone help me with this question? I would just like a guide, no answers please

In this question take g to be 10m/s^2. A catapult projects a small pellet at speed 20m/s and can be directed at any angle to the horizontal.
(i) Find the range of the catapult when the angle of projection is
(a) 30 (b) 40 (c) 45 (d) 50 (e) 60
use speed = distance/time for horizontal components and use SUVAT for vertical components

don't forget to use vertical components for vertical calculations and horizontal components for horizontal calculations!
3. I managed to get the right answer for 30, which is 34.6m, but I can't get the right answer for 40?

I did 20cos30 *2 = 34.6m

but I can't get any other answers lol

Help?

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Updated: February 19, 2016
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