Question

A hot-air balloon is ascending at the rate of 12 m/s and is 80 m above the ground when a package is dropped over the side. With what speed does it hit the ground?

Answer 1

Hey Dear,

● Answer -

v = 41.76 m/s

◆ Explanation -

# Given -

u = 12 m/s

s = -80 m

a = -9.8 m/s

# Solution -

Applying Newton's 3rd law of kinematics -

v^2 = u^2 + 2as

v^2 = 12^2 + 2(-10)(-80)

v^2 = 144 + 1600

v^2 = 1744

v = 41.76 m/s

Therefore, the ballon will reach earth with speed of 41.76 m/s.

Thanks for asking..