Remark
Every driver should know this especially if you live in cold country (like Minnesota).
Calculation Reaction time distance
t = 0.7 second
r = 55 mph (you need to convert this) to feet per second.
1 mph = 1.466 ft/s
55 mph = x Cross multiply
x = 55 mph * 1.466 feet /sec
x = 80.63 feet/second
d = ???
d = 80.63 ft/s * 0.7 sec
d = 56.44 ft. Distance to stop for the reaction time.
That is your reaction distance. Your initial speed is 80.63 feet / second
Givens: deceleration
vi = 80.63 ft/s
vf = 0 ft/s
a = -12 ft/s^2
d = ?
Equation
vf^2 = vi^2 + 2*a*d
Solve
0 = 80.63^2 + 2(-12) * d
- 6501 = -24 d
d = 271 feet to decelerate to zero
The total distance needed to stop is 271 + 56.44 = 327
Answer B
Answer:
C. is the answer in Ratio (Sin X = 5/12 and cos X = √119/12)
Step-by-step explanation:
From SOHCAHTOA
sin X = opp/hyp; while cos X = adj/hypo
From the diagram, XY = 12 = hypo; ZY =√199 = adj; XZ = 5 = opp.
Hence,
Sin X = 5/12 and cos X = √119/12
Answer:
Q = 23° 26' 33"
Step-by-step explanation:
(Round to 3 decimal places as needed.)
Answer:
-The latitude and longitude lines on maps of the Earth
-Planning where to place different pieces of furniture in a room