Question

Lysera enjoys exploring her land on horseback with its lush green valleys and ancient forests. She can cover a great deal of ground on her horse, Princess Grey Dawn, traveling at 9 km/h. Unfortunately Lysera has allergies. How far would Lysera and Princess Gray Dawn have moved while Lysera’s eyes were shut for 0.50 s during a hard sneeze? (answer in kilometers)

Answer 1

0.00125 km.

Explanation:

Given,

• Speed of the horse on which princess travelling, v = 9km/h

• Time taken by Lysera to sneeze = 0.5 s

As we know

1 hour = 3600 seconds

`=>\ 1\ second\ =\ (1)/(3600)\ hour`

`=>\ 0.50 second\ =\ (1)/(3600)* 0.50`

`=\ 1.38* 10^(-4)\ hour`

So, time taken by Lysera to sneeze can be given by,

`t\ =\ 1.38* 10^(-4)\ hour`

According to definition of speed,

`Speed\ =\ (distance)/(time)`

=>distance = speed x time

`=\ 9\ km/h* 1.38* 10^(-4)\ hour`

= 0.00125 km

Hence, Princess Gray down will moved by 0.00125 km.