Question

Abaloon is ascending at a height of 100 m above the ground when a packet is dropped from the ballon. After how much time does it reach the ground? (g=10m/s^2)​

Answer 1

Answer:

Explanation:

s=100m

u= 0 ( as the food packet is falling down)

g=10m/s^2

we know

s=ut+1/2gt^2

100 = 0(t)+1/2(10)t^2

or   5t^2 =100

t^2=20

=2$\sqrt{5}$  seconds