Question

Isabella drops a pen off her balcony by accident while celebrating the successful completion of a physics problem.

Assuming air resistance is negligible, how many seconds does it take the pen to reach a speed of 19.62 \,\dfrac{\text {m}}{\text s}19.62
s
m
​ 19, point, 62, space, start fraction, m, divided by, s, end fraction?

Answer 1

2s

Explanation: got it from khan :)

Answer 2

2 seconds

Step-by-step explanation:

v = at + v₀

19.62 m/s = (9.81 m/s²) t + 0 m/s

t = 2 s