Ayellow hot-air balloon is 100 feet off the ground and rising at rate of 8 feet per second. an orange hot-air balloon is 160 feet off the ground and rising at a rate of 5 feet per second. after how long will the yellow balloon be higher than the orange balloon?

ANSWER

Find out the how long will the Yellow balloon be higher than the orange balloon.

To proof

Now  the diagram is given below

As given

A yellow hot-air balloon is 100 feet off the ground and rising at rate of 8 feet per second.

i.e height of the yellow baloon off the ground  = 100 feet

rising at rate = 8 feet per second.

.An orange hot-air balloon is 160 feet off the ground and rising at a rate of 5 feet per second.

i.e height of the orange baloon off the ground  = 160 feet

rising at rate = 5feet per second.

Formula

Relative velocity =  rising rate of yellow balloon -   rising rate of orange balloon

= 8 -5

= 3 feet per second

Relative distance =  height of the yellow baloon off the ground -  height of the orange baloon off the ground

= 160 -100

= 60 feet

put in the formula

= 20 second

after  20 second Yellow balloon will be higher than the orange balloon.

Hence proved

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step-by-step explanation:

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