Statement (I) : The slope of kinetic energy-displacement curve of a body in motion will be directly proportional to its acceleration.
Statement (II) : From a height of 
a ball is projected vertically upwards with a velocity of 
. If the ball rises to the same height after hitting the ground, the loss of its energy on hitting the ground is 
.
Statement (III) : The velocity acquired by a body of mass ' 
' after travelling a fixed distance from rest under the action of a constant force is directly proportional to mass ' 
'. Which of the following is correct?
Text Solution
Verified by ExpertsC
We have
Slope of 
curve 
ma 
So, (I) is correct
When ball just strike the ground, then
If ball reaches the same height after striking the ground then, velocity after collision 
So, 
So, (II) is incorrect.
Now, equation of motion are independent of mass. So velocity will not depend on mass. So (III) is incorrect.
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