the key word is "dropped"
If you drop something, the initial velocity is zero
A worker drops a hammer from a second story roof that is 10m above the ground. Choose the appropriate formula to use where t represents time in seconds after the hammer is dropped. h(t) = -16t2 +v0 (Initial Velocity) + h0 (Initial Height) or h(t) = -4.9t2+v0t (Initial Velocity)+h0 (Initial Height)
I don't know if we can solve this problem without knowing the initial velocity. Am I right?
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