高分 英文物理題
高分 英文物理題
A horse in a harness racing starts to race pulling a carriage with a jockey in it. The horse exerts a backward force of 2800 N on the ground as it takes off. The mass of the jockey is 110 lbs, the mass of the carriage is 275 lbs, and the mass of the horse is 1100 lbs. If we set the direction of the motion of the horse to be the +x direction,
(a) What are the direction and the magnitude of the reaction force by the ground?
(b) What acceleration is produced, assuming the friction between the carriage and the ground is negligible?
(c) Calculate the force the horse exerts on the carriage.
(d) Calculate the force the carriage exerts on the jockey.
A horse in a harness racing starts to race pulling a carriage with a jockey in it. The horse exerts a backward force of 2800 N on the ground as it takes off. The mass of the jockey is 110 lbs, the mass of the carriage is 275 lbs, and the mass of the horse is 1100 lbs. If we set the direction of the motion of the horse to be the +x direction,
(a) What are the direction and the magnitude of the reaction force by the ground?
(b) What acceleration is produced, assuming the friction between the carriage and the ground is negligible?
(c) Calculate the force the horse exerts on the carriage.
(d) Calculate the force the carriage exerts on the jockey.
英語(yǔ)人氣：685 ℃時(shí)間：2020-05-05 16:18:13
優(yōu)質(zhì)解答
我相信首要問(wèn)題是翻譯,如下：一匹馬戴著馬具,拉一個(gè)坐著駕駛員的馬車(chē).馬在開(kāi)始起步時(shí),對(duì)地面的反向作用力是2800N,駕駛員質(zhì)量為110磅,馬車(chē)質(zhì)量為275磅,馬的質(zhì)量為1100磅.如果我們假設(shè)馬的運(yùn)動(dòng)方向?yàn)閄的正方向（1）地...
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