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# mechanics q watch

1. http://www.mei.org.uk/files/papers/2012_Jan_m1.pdf

how is 7i done
2. What have you tried?

You should start by only considering vertical motion and use SUVAT to find out how long it takes for the particle to return to the ground i.e. s = 0.

Have a go and post your working.
3. time of flight is defined by T(flight)=2usin(theta)/g and range R=Ux*t and if your time of flight is 2usin(theta)/g then R=Ux*2usin(theta)/g?

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Updated: June 17, 2016
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