Question

Question #d1a37

Answer 1

I got `55.6m`

Explanation:

I would impose that the initial velocity is zero (....drops) so I use the relationship:
`v_f^2=v_i^2+2a(y_f-y_i)`
Where:
`v_i=0` the initial velocity;
`y_f=0`
`g=-9.8m/s^2`
`v_f=33m/s`
So we get:
`33^2=0^2-2*9.8(0-y_i)`
`1089=19.6y_i`
So:
`y_i=1089/19.6=55.56~~55.6m`