Question

A car travels at a constant speed of 408 km/h, how long does it take to travel 80 m?​

Answer 1

We first apply the data to the problem.

Data:

`\bold{\: \: \: \: \: \: \: \: \: \: \:V = 408km/h}`

`\bold{ \: \: \: \: \: \: \: \: \: \: \: D = 80m} \\ \bold{T = ?}`

Now, we convert km/h to m/s.

Conversion:

`\bold{408km/h * (1000m/1km) * (1h/3600s) }`

`\bold{V = 113.3m/s}`

Then, we apply the formula that is.

Formula:

`\bold{T = D/V}`

Finally we develop the problem.

Developing:

`\bold{T = 80m / 113.3m/s}`

`\bold{T = 0.706s}`

In a time of 0.706 seconds.