Rotational Motion Question 18
Question: If a cyclist turns around a right-angled corner at a speed of 16 feet/sec, making a turn in 0.8 seconds, then he must lean over at an angle of nearly:
Options:
A) 45°
B) 90°
C) 15°
D) More than one of the above
Show Answer
Answer:
Correct Answer: A
Solution:
- [a]Given speed = 16 ft/sec
The cyclist makes a turn in 0.8 seconds.
Angular velocity
Centripetal acceleration
Angle of leaning (\theta) is given by
Therefore, the cyclist must lean over at an angle of nearly 45°1
