2. A vehicle (SUV) is to overtake a bus as it enters an acceleration lane. The speed of the SUV is 80 kph initially. The bus is at the same speed as the SUV. Given the perception reaction time as 2.70 seconds and the average acceleration of the vehicle is 2.55 m/s, solve the following: a. The distance (in ft) traversed during the perception and reaction time and during the initial acceleration to the point of encroachment on the left lane. b. The distance (in yard) travelled by the passing vehicle occupies the left lane if the opposing vehicle travelled at 75 kph and the time for the passing vehicle to occupy the left lane is 20 seconds. c. The minimum passing sight distance (in m) if the SUV's velocity to overtake the bus is 55.92 miles per hour while the distance between the opposing vehicle and the SUV after its maneuver is 29s ft. The time for the SUV to occupy the left lane is 0.23 minutes. d. The passing sight distance (in furlong) that the SUV could move while overtaking the slow-moving bus before meeting the on-coming opposing vehicle if the velocity of SUV increases to 90 kph and the time for it to occupy the left lane is 12.50 seconds. The opposing vehicle travels at a speed of 70 kph and the time for it to reach a point before it passes the SUV is 0.18 minutes. The between the SUV at the end of its maneuver and the opposing vehicle is 91.60 yards.
2. A vehicle (SUV) is to overtake a bus as it enters an acceleration lane. The speed of the SUV is 80 kph initially. The bus is at the same speed as the SUV. Given the perception reaction time as 2.70 seconds and the average acceleration of the vehicle is 2.55 m/s, solve the following: a. The distance (in ft) traversed during the perception and reaction time and during the initial acceleration to the point of encroachment on the left lane. b. The distance (in yard) travelled by the passing vehicle occupies the left lane if the opposing vehicle travelled at 75 kph and the time for the passing vehicle to occupy the left lane is 20 seconds. c. The minimum passing sight distance (in m) if the SUV's velocity to overtake the bus is 55.92 miles per hour while the distance between the opposing vehicle and the SUV after its maneuver is 29s ft. The time for the SUV to occupy the left lane is 0.23 minutes. d. The passing sight distance (in furlong) that the SUV could move while overtaking the slow-moving bus before meeting the on-coming opposing vehicle if the velocity of SUV increases to 90 kph and the time for it to occupy the left lane is 12.50 seconds. The opposing vehicle travels at a speed of 70 kph and the time for it to reach a point before it passes the SUV is 0.18 minutes. The between the SUV at the end of its maneuver and the opposing vehicle is 91.60 yards.
Physics for Scientists and Engineers: Foundations and Connections
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note: last sentence in "d" is: The distance between the SUV at the end of its maneuver and the opposing vehicle is 91.60 yards
Transcribed Image Text:2. A vehicle (SUV) is to overtake a bus as it enters an acceleration lane. The speed
of the SUV is 80 kph initially. The bus is at the same speed as the SUV. Given
the perception reaction time as 2.70 seconds and the average acceleration of
the vehicle is 2.55 m/s, solve the following:
a. The distance (in ft) traversed during the perception and reaction time and
during the initial acceleration to the point of encroachment on the left lane.
b. The distance (in yard) travelled by the passing vehicle occupies the left lane
if the opposing vehicle travelled at 75 kph and the time for the passing
vehicle to occupy the left lane is 20 seconds.
c. The minimum passing sight distance (in m) if the SUV's velocity to overtake
the bus is 55.92 miles per hour while the distance between the opposing
vehicle and the SUV after its maneuver is 295 ft. The time for the SUV to
occupy the left lane is 0.23 minutes.
d. The passing sight distance (in furlong) that the SUV could move while
overtaking the slow-moving bus before meeting the on-coming opposing
vehicle if the velocity of SUV increases to 90 kph and the time for it to
occupy the left lane is 12.50 seconds. The opposing vehicle travels at a
speed of 70 kph and the time for it to reach a point before it passes the SUv
is 0.18 minutes. The between the SUV at the end of its maneuver and the
opposing vehicle is 91.60 yards.
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