Question

A bicyclist of mass 68 kg rides in a circle at a speed of 3.9 m/s. If the radius of the circle is 6.5 m, what is the centripetal force on the bicyclist? A.

41 N   B. 159 N   C. 179   D. 92 N

Answer 1

Just did it on

A P 3 X

Answer is 158 N

Step-by-step explanation:

Answer 2

Data:
Centripetal Force = ? (Newton)
m (mass) = 68 Kg
s (speed) = 3.9 m/s
R (radius) = 6.5 m

Formula:

`F_(centripetal\:force) = (m*s^2)/(R)`

Solving:

`F_(centripetal\:force) = (m*s^2)/(R)`

`F_(centripetal\:force) = (68*3.9^2)/(6.5)`

`F_(centripetal\:force) = (68*15.21)/(6.5)`

`F_(centripetal\:force) = (1034.28)/(6.5)`

`\boxed{\boxed{F_(centripetal\:force) = 159.12\:N}}`
Answer:
B.159 N