Question

an object is thrown upwards and reaches a height of 78.4m calculate the velocity at which the object was thrown!
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Answer 1

Answer:

v=0

u=?

h=78.4

v^2 = u^2+2gh

o=u^2+2×-9.8m/s ×78.4m

o=u^2-1536.64

1536.64=u^2

root of 1536.64=u

39.2=u