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Two projectiles are thrown simultaneously in the same plane from the same point. If their velocities are `v_(1)` and `v_(2)` at angles `theta_(1)` and `theta_(2)` respectively from the horizontal, then ansewer the following questions If `v_(1)costheta_(1) = v_(2)cos theta_(2)`, then choose the incrorrect statementA. the time of flight of both the particles will be sameB. the maximum height attained by the particles will be sameC. the trajectory of one with respect to another will be a horizontal straight lineD. none of these |
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Answer» Correct Answer - B `y = xtan theta-(gx^(2))/(2x^(2)cos^(2)theta)` `75 = x tan53^(@) - (gx^(2))/(2xx50^(2)cos^(2)53^(@))` `75 = x (4)/(3) - (x^(2))/(2xx2500xx9)` `75 = (4x)/(3)-(x^(2))/(180)` solving `x_(1) =150 m " "x_(2) = 90m` `Deltax= 60m` |
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