Question

A supersonic jet is flying west at one-third of its maximum speed. The jet's top speed is 4,500kilometersperhour. If the jet's velocity remains constant, how much time will it take the jet to fly 3,000kilometers?

Answer 1

2hrs

Step-by-step explanation:

Given parameters

Top speed of the jet = 4500km/hr

Distance = 3000km

Unknown:

Time = ?

Solution:

Velocity is the displacement divided by time.

Velocity =
`(displacement)/(time)`

Time =
`(displacement)/(velocity)`

The jet flies at one - third its maximum speed;

So, speed of the jet =
`(1)/(3)` x 4500 = 1500km/hr

Time =
`(3000)/(1500)` = 2hrs