Ball bearings can be made by letting spherical drops of molten metal fall inside a tall tower - called a shot tower - and solidify as they fall. If a bearing needs 4.0 s to solidify enough for impact, how high must the tower be?

height of tower= 78.48 meters

Explanation:

So here are your givens:

time(t)= 4 s.

initial velocity(u) = 0 m/s

acceleration due to gravity (g)= 9.81 m/s^2

distance(s)=s meters

using one of Newton's equation of motion ;

height of the tower from the ground=total distance covered by bearing

height of tower= 78.48 meters

grav force prop 1/r squared 2r all squared is 4rsquared 1/4rsquared quartered

what is the actual question though?