question projectile motion (1 Viewer)

[rama_v]

ok heres another one i dont understand

A stone is thrown a distance of 75m at an elevation of 24.3 degrees, calculate its original speed?

You most likely will NOT get a question like this in the hsc, because it cannot be solved using first principles (thats what our teacher said, anyway). But I'm sure it can be solved, maybe those in extension 1 maths doign projectile motion can answer it...

 

[richz]

acmilan good work, thats the answer the teacher had, just didnt know how to work it out

 

[richz]

yeah thats wat my teacher said too, anyway do u mean ext 2 maths??

 

[acmilan]

I solved it using physics formulae, no maths ext 1 or ext 2 required