Answer :
Explanation:
we will use the equation : v²=u²+2gh, where u=0, v=199km/h=199×5/18 m/s = 995/18m/s, g= ?, h= 2000 m.
placing in equation :
=>(995/18)²-0²=2.g.2000
=>(990025/324)-0=4000.g
=> (990025)/(324×4000)
=> 990025/1296000
=> 0.763m/s².
is the correct answer.
hope this helps you.