Physics Unit8: Rotational Motion (id: a985bb36d)

[单选题]
A car is negotiating a flat circulav5f yrd v5,bxo)ww68 3an uacm ;(fyj)r curve of radiump waufp0ck; eck 245+gkxj75s 50 m with a speed of 20 m/s. The maximuc27;5k0kcx+gjf5epwmkua4 pm centripetal force (provided by static friction) is $1.2 \times 10^{4} \; N$. What is the centripetal acceleration of the car?

A. $0.40 \; m/s^2$
B. $0.80 \; m/s^2$
C. $4.0 \; m/s^2$
D. $8.0 \; m/s^2$


参考答案:  D


本题详细解析: 暂无