呢个呢就睇下个object系有冇friction的面用行motion啦... 当佢no friction呢..佢以constant v(6ms^-1)行呢..就冇work done..因为佢个velocity不变..除非你话由0ms^-1计起..咁佢就有work done..(同6加到10一样) 当佢有 friction呢..but佢又以constant v(6ms^-1)行呢..就有work d...
38播放 ·0弹幕2020-11-27 07:44:23 1111 稿件投诉 笔记 https://www.youtube.com/watch?v=kCJUzdCBOk0 GCSE Physics - Power and Work Done 英语 考试 知识 校园学习 IB 物理 课程 高中 初中 经验分享 学习心得 GCSE arriettyCJL发消息 国外物理学习视频搬运 ...
百度试题 结果1 题目The formula for calculating work done in physics is: A. Work = Force × Distance B. Work = Force × Time C. Work = Mass × Acceleration D. Work = Force × Velocity 相关知识点: 试题来源: 解析 A 反馈 收藏
Torque On A Current Carrying Loop|Magnetic Moment|Exercise Questions |Work Done In Rotating A Loop|Potential Energy Of Current Carrying Loop View Solution Knowledge Check The current carrying loop behaves as magnetic dipole because, Aupper face of loop behaves as south pole and lower as north pole...
1 Although he knew little about the work done in the field of physics, he succeeded ___ other experienced experts failed. A. which B. that C. what D. where 2Although he knew little about the work done in the field of physics, he succeeded ___other experienced experts failed. A.whi...
1 Work done against friction problem? 1 If a block is sliding on a moving cart, why is the work done by kinetic friction on the cart greater then that done on the block? 2 The Work-Energy Theorem in Non-Inertial Frames: A Critical Analysis and Misconceptions Hot Network Questions ...
I would say that the work done which is the energy used to move my body was not zero and maybe when going downward it has an opposite sign but still it feels like I used more energy to go up than down. Is the work zero because of 0 displacement? energy energy-conservation work ...
Learn in details about kinetic energy and work done with in-depth concepts and examples. To know more about kinetic energy and work energy theorem visit BYJU'S.
Definition Power is defined as the rate at which work is done. Formula The formula for power is P = W/t Unit The SI unit of power is Watt (W). Watch the video and solve complete exemplar questions in the chapter Work and Energy Class 9 4,176 Frequently Asked Questions Q1 How are...
Physics Work Questions8.What work is done when a person pushes an 80 kg washing machine 12m across the floor. The force of friction between the washing machine and floor is 500 N. 9. A sailor pulls a boat along a dock using a rope at an angle of 60° with the horizontal. How much...