Respuesta :
The time taken to travel length of track is 150 second
Solution:
Given that children's rollercoaster ride travels along 3300 feet of track at an average rate 15 miles per hour
Distance = 3300 feet
Speed = 15 miles per hour
To find: Time taken to travel this length of the track in seconds
The relation between speed and distance is given as:
[tex]speed = \frac{distance}{time}[/tex]
[tex]time = \frac{distance}{speed}[/tex] ----- eqn 1
Let us first convert miles per hour to feet per second
To convert miles to feet multiply by 5,280
1 mile = 5280 feet
To convert hours to seconds, multiply by 3,600
1 hour = 3600 seconds
Converting 15 miles per hour to feet per second
[tex]15 \frac{miles}{hour} = 15(\frac{5280}{3600}) = 22 \frac{feet}{second}[/tex]
Substituting the values in eqn 1, we get
[tex]time = \frac{3300 feet}{22 \frac{feet}{second}}[/tex]
time = 150 second
Thus the time taken to travel length of track is 150 second
