the block of known mass is placed in front of trolley as shown in figure when a known mass is kept on pan the block get displaceda) where does block get energy from
b if mass on pan is increased will work done will be more.
c what type of energy possessed by the trolley
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Answer:
Mass of the particle, m=0.1kg
Height, h=0.24m
Compression, x=0.01m
Loss in potential energy =mg(h+x)
Elastic potential energy =
2
1
kx
2
⇒mg(h+x)=
2
1
kx
2
Also mg(h
′
+x
′
)=
2
1
kx
′2
On dividing
⇒
h
′
+x
′
h+x
=
x
′2
x
2
⇒
h+0.04
0.24+0.01
=(
0.04
0.01
)
2
On solving,
⇒h=3.96m.
Hence, the answer is 3.96m.
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