a massless spring is compressed between two blocks,one of mass M and the other of mass 5M,on a frictionless horizontal table.If this system is released from rest the potential energy in the spring is converted into kinetic energy of the blocks such t

来源:学生作业帮助网 编辑:六六作业网 时间:2024/12/24 00:25:22
amasslessspringiscompressedbetweentwoblocks,oneofmassMandtheotherofmass5M,onafrictionlesshorizontalt

a massless spring is compressed between two blocks,one of mass M and the other of mass 5M,on a frictionless horizontal table.If this system is released from rest the potential energy in the spring is converted into kinetic energy of the blocks such t
a massless spring is compressed between two blocks,one of mass M and the other of mass 5M,on a frictionless horizontal table.If this system is released from rest the potential energy in the spring is converted into kinetic energy of the blocks such that the block of mass M gets ( )of the total energy?
A.5/6 B.4/5 C.1/2 D.1/5 E.1/6

a massless spring is compressed between two blocks,one of mass M and the other of mass 5M,on a frictionless horizontal table.If this system is released from rest the potential energy in the spring is converted into kinetic energy of the blocks such t
D
first,the forces and time exerted on both blocks are the same,thus both blocks got the same impluse(Ft) at the moment the potential energy of the spring becomes 0.According to the Impluse-momentum theorem,the change in momentum equals to the impluse(p=Ft).the momentum p=mv and the kinetic energy KE=0.5mv^2,so KE=0.5pv.
because both blocks got the same force,according to Neton's second law,a=F/m,the ratio of the accelaration of the tow blocks would be 5M:M=1:5
because the time is the same,the ratio of the final velocity of the two blocks is 1:5
and the ratio of the Kinetic energy is equal to te ratio of the final velocity is also 1:5
so the answer is D

关于弹簧简谐运动的物理问题.怎么在碰撞后求振幅?翻译见下A 2.00-kg object is attached to an ideal massless horizontal spring of spring constant 100.0 N/m and is at rest on a frictionless horizontal table.The spring is aligned a A mass m is attached to a massless spring with a force constant k.The mass rests on a horizontal frictionless surface.The system is compressed a distance x from the spring's initial position and the released.The momentum of the mass when the spring p a massless spring is compressed between two blocks,one of mass M and the other of mass 5M,on a frictionless horizontal table.If this system is released from rest the potential energy in the spring is converted into kinetic energy of the blocks such t To the right is a diagram of a 4 kg weight hanging from a massless string.The weight is connected To the right is a diagram of a 4 kg weight hanging from a massless string.T spring is spring is a c______season.i like it. It is a ( ) spring day .空格要填什麼? Spring is the king of a year Spring is a best ( )in our city It is a ( ) spring day . 空格要填什麼? 英语作文 spring is a hopeful season 英语翻译最近看弹簧设计,发现已经很有意思的话:a spring is a spring is a spring. Two masses,M and m,are hung over a massless,frictionless pulley as shown below if M>m,what is the downward acceleration of mass M.用字母表示 英语翻译What fun it is to spring on a spring and spring into a spring in spring.的中文意思是什么? 英语翻译What's springLittle swallow say:Spring is a warm nest.Little duck says:spring is a gentle river.Little bee says:Spring is a sweet flower.Little goat seys:Spring is green grass.Children say:Spring is our happiness! In spring,A spring springs into spring, spring:It is the first quarter of a year and peasants sow seeds in spring.翻译