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KatRina [158]
3 years ago
11

What do you mean by MA Of a lever is 3, VR of A lever is 4 and n of a Machine is 60%?​

English
1 answer:
Serggg [28]3 years ago
5 0

Answer:

MA of lever is 3 means that the applied force can lift 3 times heavier load using that machine.

VR of a lever is 4 means the effort has to move 4 times more distance than that of load distance to lift any load up to certain height.

efficiency of 60% means that 40% of energy is wested due to friction, heat energy.

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ᴛʜᴇ ᴘᴏɪɴᴛ (0,4) ɪs ʟᴏᴄᴀᴛᴇᴅ ᴏɴ ? ​
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Answer:

\setlength{\unitlength}{2.5mm}\begin{picture}(10,10)\multiput(0,0)(2,0){21}{\line(0,1){40}}\multiput(0,0)(0,2){21}{\line(1,0){40}}\linethickness{0.45mm}\put(20,20){\vector(2,0){18}}\put(20,20){\vector(-2,0){18}}\put(20,20){\vector(0,2){18}}\put(20,20){\vector(0,-2){18}}\multiput(19.35,6)(0,2){15}{\line(1,0){1.3}}\multiput(6,19.35)(2,0){15}{\line(0,1){1.3}}\put(20,20){\circle*{1}}\put(22,22){\sf O(0, 0)}\put(20,28){\circle*{1.1}}\put(20,28){\circle{2}}\put(21,28){\sf A(0, 4)}\put(20,38){\sf Y}\put(21,2){\sf Y'}\put(2,21){\sf X'}\put(37,21){\sf X}\end{picture}

\sf\pink{Answer\::}

The point (0,4) is located on the y axis in between 1st quadrant on cartisian plane.

\rule{130}1

\huge \sf\gray{Extra\:Shots\::}

The cartisian plane is defined by two perpendicular number lines, x axis (horizontal line), and y axis (vertical line).

  • The cartisian plane is divided into 4 quadrants.
  • The first quadrant both x and y ordinate both are positive.
  • The second quadrant x ordinate is negative and y ordinate is positive.
  • The third quadrant both x and y ordinate are negative.
  • In fourth quadrant x ordinate is positive and y ordinate is negative.

\rule{170}2

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