A juggler throws a bowling pin into the air with an initial velocity . Another juggler drops a pin at the same instant.
1 answer:
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Answer:
Explanation:
When the rock is immersed in unknown liquid the forces that act on it are shown as under
1) Tension T by the string
2) Weight W of the rock
3) Force of buoyancy due to displaced liquid B
For equilibrium we have
=
When the rock is suspended in air for equilibrium we have
When the rock is suspended in water for equilibrium we have
+
=
Using the given values of tension and solving α,β,γ simultaneously for we get
Solving for density of liquid we get
Answer:
First graph
Explanation:
Here we need to tell which graph best represents the relationship between kinetic energy and mass . As we know that ,
KE = 1/2 mv²
Here we will plot KE on y axis and mass of x axis. And it is in form of y = mx + c .On comparing the given equation with ,
y = mx + c
- c = 0
- m = 1/2v²
Therefore the line will be straight and will pass through origin with a slope v²/2 .
From the attached graphs , first graph is correct .
<h3>First graph best represents the relationship between kinetic energy and mass.</h3>