Respuesta :
Given Information:
Time period = T = 30 minutes
Diameter of wheel = d = 150 m
Required Information:
speed in m/s = ?
speed in mi/hr = ?
Answer:
speed in m/s = 0.262
speed in mi/hr = 0.586
Explanation:
The speed is given by
speed = distance/time
distance = 2πr
therefore,
v = 2πr/T
where r is the radius of wheel and T is the time taken to complete one full cycle.
T = 30*60
T = 1800 seconds
r = d/2
r = 150/2
r = 75 m
v = 2π*75/1800
v = 0.262 m/s
v = 0.262 m/s *3600/1609
v = 0.586 mi/hr
Answer:
Explanation:
Given:
D = 150 m
w = 30 rpm
To rad/s,
30 rev/min × 2pi rad/1 rev × 1 min/60 s
= 3.142 rad/s
v = w × r
v = 3.142 × 75
= 235.65 m/s
In mi/hr,
235.65 m/1 s × 1 mi/1608.344 m × 3600 s/1 hr
= 527.5 mi/hr.