A meter rule balance on a knife headge at the 55cm mark wheb a mass of 40g from 995cm .find the mass of the meter rule.
1 answer:
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Answer:
1.628
Explanation:
Anywhere in the universe, In a closed system, <u>Conservation of energy</u> is applicable.
In this case
Neil is initially on the surface of moon and has a velocity of 1.51 in upward direction.
⇒He has Kinetic energy= =
J
But with respect to the surface of the moon,
where m=mass of moon
v=velocity of Neil
He has Potential energy= =0 J
At the highest point of his jump, his velocity =0
⇒ Kinetic energy==0 J
His Potential energy with respect to the surface of moon==
where m=mass of moon
g= gravitational acceleration on moon
h=height from moon's surface
By Conservation Energy Principle
+
=
+
+0=0+
=
=
J=
⇒ g = = 1.628