While standing on a ladder, you drop a paintbrush. The function represents the h

Emily-Jane Bray

Emily-Jane Bray

Answered question

2021-09-17

While standing on a ladder, you drop a paintbrush. The function represents the height y (in feet) of the paintbrush t seconds after it is dropped. After how many seconds does the paintbrush land on the ground?

Answer & Explanation

smallq9

smallq9

Skilled2021-09-18Added 106 answers

Calculations:
The paintbrush lands on the ground when y=0.
So, 2516t2=0
16t2=25
t2=2516
t=54(tq54 as time cannot be negative)
Thus, the required time is 1.25 seconds.

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