Question

needing help on physics

Answer 1

An object is dropped from a platform 400 ft high. Ignoring wind resistance, how long will it take to reach the ground?\[400ft\]

Answer 2

You need the equation \[s=ut+\frac{ 1 }{ 2 }at^2\]

Answer 3

u=initial vel.
t=time
a=acc.( in this case acc. due to gravity) g=10m/s^2
s=displacment/distance

Answer 4

your initial vel. is 0 since its dropped so you can do the rest by changing the variables with the values