Which of the following graph shows the variation of velocity with mass for the constant momentum?
For constant momentum, we know that the momentum \( p \) is given by the equation: \[ p = mv, \] where \( m \) is the mass and \( v \) is the velocity. For constant momentum, we can rearrange the equation to get: \[ v = \frac{p}{m}. \] This shows that velocity \( v \) is inversely proportional to mass \( m \), meaning as the mass increases, the velocity decreases, and vice versa.
The graph that shows this inverse relationship is a hyperbola, which corresponds to Fig 1.
Thus, the correct graph is Fig 1.
Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Knowing the initial position \( x_0 \) and initial momentum \( p_0 \) is enough to determine the position and momentum at any time \( t \) for a simple harmonic motion with a given angular frequency \( \omega \).
Reason (R): The amplitude and phase can be expressed in terms of \( x_0 \) and \( p_0 \).
In the light of the above statements, choose the correct answer from the options given below:
A body initially at rest undergoes rectilinear motion. The force-time (F-t) graph for the motion of the body is given below. Find the linear momentum gained by the body in 2 s.
If the ratio of lengths, radii and Young's Moduli of steel and brass wires in the figure are $ a $, $ b $, and $ c $ respectively, then the corresponding ratio of increase in their lengths would be: