Acyclist rides at a constant speed of 4.5 m/s around a curve. if the centripetal acceleration is 29 m/s2, what is the radius of the curve? a) 0.16 m b) 0.70 m c) 6.4 m d) 34 m

B) 0.70 m

Explanation:

The centripetal acceleration is given by:

where

v is the speed (tangential speed)

r is the radius of the curve

In this case, we know the speed, v=4.5 m/s, and the centripetal acceleration, a=29 m/s^2, so we  can re-arrange the equation above to find the radius of the curve:

b. lifting dumbbell weight at 20-degree angle from the body after a 45-degree angle

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.