Multiple Choice
Two horizontal curves on a bobsled run are banked at the same angle, but one has twice the radius of the other. The safe speed (no friction needed to stay on the run) for the smaller radius curve is V. Therefore, the safe speed on the larger radius curve is
A) 2. V.
B) 0.71 V.
C) 0.5 V.
D) 1.4 V.
E) 0.10 V.
Correct Answer:

Verified
Correct Answer:
Verified
Q58: The escape speed from the moon is
Q59: Show that the change in gravitational potential
Q60: If the Earth had four times its
Q61: The record playing on the turntable of
Q62: An astronaut goes out for a "space-walk"
Q64: A planet revolves clockwise around a star,
Q65: Consider a small satellite moving in a
Q66: Satellite A has twice the mass of
Q67: A jet plane flying 600. m/s experiences
Q68: The speed for a "low" circular orbit