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A projectile is thrown at angle theta a...

A projectile is thrown at angle `theta ` and` (90^(@) -theta )` from the same point with same velocity `98 m//s`. The heights attained by them, if the difference of heights is 50 m will be`- ("in" m) `

A

270,220

B

300,250

C

250,200

D

200,150

Text Solution

Verified by Experts

` h_(1) = (u_ (2) sin ^(2) theta )/ (2g) and h_(2)= (u^(2) sin ^(2) (90 -theta))/ (2g) `
`:. h_(1) + h_(1) = u^(2)//2g (sin^(2) theta +cos ^(2) theta )`
` u^(2) g //2g = (98^(2))/(2xx10)=490`
`h_(1) -h_(2) =50 ," ":. h_(1) =270 m and h_(2)=220m`
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