Answer:
1.98 km
Explanation:
Objects moving in circular arcs experience centripetal acceleration (ac) towards the center of the arc. This acceleration is equal to the square of the tangential speed (v) divided by the radius (r) of the arc.
ac = v² / r
0.6 (9.8 m/s²) = (108 m/s)² / r
5.88 m/s² = (11,664 m²/s²) / r
r = (11,664 m²/s²) / (5.88 m/s²)
r = 1,984 m
r = 1.984 km
Rounding to three significant figures, the radius of the arc is 1.98 km.