题目2单选题
曲线运动的切向加速度<img src="https://tihai-oss-cloud.itihey.com/img/ad6c3fa8c2dbf457cd77fbe7dc8713c3.png">和法向加速度<img src="https://tihai-oss-cloud.itihey.com/img/a26439778fcf7b61c8b4c9d13a00a102.png">的大小分别是A. <img src="https://tihai-oss-cloud.itihey.com/img/bd4d2c7e301b1bf12a36662a8be6da03.png">, <img src="https://tihai-oss-cloud.itihey.com/img/291ddfb6ffa8b25da10e83867ede85a1.png">B. <img src="https://tihai-oss-cloud.itihey.com/img/1df3a05a62f25a305c92630342c44622.png">, <img src="https://tihai-oss-cloud.itihey.com/img/dce082113796a11fe6026fbd85cdc307.png">C. <img src="https://tihai-oss-cloud.itihey.com/img/713187738952cf50ba35298c2436cc02.png">, <img src="https://tihai-oss-cloud.itihey.com/img/0ce6eb4313ebed1e77e6fd72ff33c50a.png">D. <img src="https://tihai-oss-cloud.itihey.com/img/7fd0161629a777438be9e7ac5b4a6f64.png">, <img src="https://tihai-oss-cloud.itihey.com/img/bcc46614ba38dc8e787ce7bba737ba37.png">