A person standing on a tower of height H wishes to hit a target placed on incline plane by throwing projectile horizontally as shown in figure. If H = 11 m and L = 10 m, then speed required for projectile is m/s. (g=10m/s2)
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Solution
V0 = Lcos37T
H - Lsin37 = 12g
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T2 ∴ T =
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√2(H−Lsin37)g ∴ T = 1 ∴V0 = 10(45)1 ∴V0 = 8 m/s