1@philip
ya!and plz in detail
so that we can get solution as well as concept.
Q2. A child throws a ball from point A with an initial velocity 20 m s-1 at an angle 37° with the horizontal. B is a point on its trajectory such that tangent at B makes 30° with horizontal. The radius of curvature at B is [g = 10 m s−2].
(A) 50m
(B) 58m
(C) 60m
(D) 68m
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17 Answers
1
11uske line of action ko follow kar
i think the answer should be A then
1is it ? i din do .... i will do it fully n verify [later ;) mummy daant-ing]...
1ok!lemme post my wrong solution.
let velocity at B be v
then
vcos30=20cos37
v=32/√ 3
mv2/R=ma
v2/R=a
R=v2/a
R=34
1:D im sorry its a bit more messy than id thought
i'll let sky do the honours
11can you pls tell me wat do you mean by radius of curvature? i have read it in many probs and never understood it
1well do u think there is any exam left which will ask this type of question
anyways let me solve now since i've seen it !
1meko to none of these ans. mila.lagta hai maine radius of curvature ko galat samajh liya hai.plz tell
1bhaiyoo hame bhi kuch radius of curvature ke bare mein bata diyooo!!!!!!!!