Respuesta :
Answer:
(a). The speed is 115.28 m/s.
(b). The time is 94 min.
(c). The International Space Station travels 43202.400 km.
(d). Speed is scalar quantity.
Velocity is vector quantity.
Explanation:
Given that,
Top speed = 415 km/h
1 miles = 1609 m
(a). We need to calculate the speed in m/s
Using conversion of km/h to m/s
[tex]v=415\ km/h[/tex]
[tex]v=415\times\dfrac{5}{18}[/tex]
[tex]v=115.28\ m/s[/tex]
(b). We need to calculate the distance from London to Edinburgh in km
Using conversion for distance
[tex]d=403\ miles[/tex]
Distance in meter,
[tex]d=403\times1609[/tex]
[tex]d=648427\ m[/tex]
[tex]d=648.427\ km[/tex]
We need to calculate the time
Using formula of time
[tex]t=\dfrac{d}{v}[/tex]
Put the value into the formula
[tex]t=\dfrac{648.427}{415}[/tex]
[tex]t=1.56\ h[/tex]
[tex]t=1\ hours 34\ min[/tex]
[tex]t= 94\ min[/tex]
(c). Speed v' =7.66 km/s
v'=7660 m/s
In the time it takes the car to travel from London to Edinburgh,
We need to calculate the distance
Using formula of distance
[tex]d'=v'\times t[/tex]
Put the value into the formula
[tex]d'=7660\times94\times60[/tex]
[tex]d'=43202400\ m[/tex]
[tex]d'=43202.400\ km[/tex]
(d). Speed :
Speed is equal to the distance divided by time.
It is scalar quantity.
Velocity :
Velocity is equal to the displacement divided by time.
It is vector quantity.
Hence, (a). The speed is 115.28 m/s.
(b). The time is 94 min.
(c). The International Space Station travels 43202.400 km.
(d). Speed is scalar quantity.
Velocity is vector quantity.
