Question

Centripetal acceleration of a cyclist completing 7 rounds in a minute along a circular track of radius 5 m with
a constant speed, is
(1) 2.7 m/s2
(2) 4 m/s2
(3) 3.78 m/s2
(4) 6 m/s2​

Answer 1

Explanation:

it is the correct answer

Answer 2

Answer:

The speed is 2.7 m/s².

(1) is correct option.

Explanation:

Given that,

Round = 7

Time = 1 mint

Radius = 5 m

We need to calculate the acceleration

Using formula of speed

$a=\omega^2\times r$

Where, r = radius

[tezx]\omega[/tex] = angular velocity

Put the value into the formula

$a=(\dfrac{7\times2\pi}{60})^2\times 5$

$a=2.7\ m/s^2$

Hence, The speed is 2.7 m/s².