Question

An acorn falls from a tree and hits the ground in 0.8 s. How far did the acorn fall . Use g = 9.8 m/s^2. Round your final result to the nearest tenth.

Answer 1

Answer:

3m

Explanation:

s=ut + 1/2*a*t^2

here u=0 as acorn was initially at rest

t=0.8sec, a=g=9.8m/s^2

s=0+1/2*9.8*(0.8)^2

s=3.316m

on rounding off

s=3m

here the initial position of acorn is considered as origin and positive axis is towards the earth