a body is projected vertically up with velocity 'u' .its velocity at half its maximum height is
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Maximum height (H) is
H = u² / (2g)
At half of maximum height
H/2 = (v² - u²) / (2g)
u² / (4g) = (v² - u²) / (2g)
u² / 2 = v² - u²
v² = 3u²/2
v = u√1.5
Velocity at half of maximum height is u√1.5
H = u² / (2g)
At half of maximum height
H/2 = (v² - u²) / (2g)
u² / (4g) = (v² - u²) / (2g)
u² / 2 = v² - u²
v² = 3u²/2
v = u√1.5
Velocity at half of maximum height is u√1.5
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