Asked by Curt

An object is thrown vertically up and attains an upward velocity of 10 m/s when it reaches one fourth of its maximum height above its launch point. What was the initial speed of the object? The acceleration of gravity is 9.8 m/s2. Answer in units of m/s

Answered by omna
Use third equation of motion . Find height from there by keeping s= h\4 then use third equation of motion again and find U from there

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