by applying an effort of 200n a load of 600n is overcome by first class lever. if the load is at 20 cm away from the fulcrum:
long should the effort be applied from the fulcrum
sketch a diagram for the lever.
what will happen if the load is slided towards the fulcrum?
Answers
Answered by
3
Answer:
Given
a
2
=13 and a
5
=25
We know that
a
n
=a+(n−1)d
∴a
2
=a+(2−1)d
⇒13=a+(2−1)d
⇒a+d=13 ...(i)
and a
5
=a+(5−1)d
⇒25=a+4d
⇒a+4d=25 ...(ii)
Now, subtracting (i) from (ii), we get
3d=12
⇒d=4
Now a+d=13 [from (i)]
⇒a=9
Hence, a
7
=a+6d=9+6(4)
⇒a
7
=33
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