Show that the instantaneous speed of a particle is equal to the slope of the distance-time graph.

What information do we get from the slope of the velocity-time graph?

What information do we get from the slope of the velocity-time graph?

Show that the speed of electron in the second orbit of He^(+) atom is equal to the speed of electron in the first orbit of hydrogen atom.

What does the slope of v - t graph represent?

When is the average velocity of a particle equal to its instantaneous velocity?

If the instantaneous velocity of the particle is zero, will its instantaneous acceleration be necessarily zero?

The initial velocity of a particle- is u and acceleration (f) is uniform. Final velocity and distance covered in the interval t are v and s respectively. Show that the velocity of the particle at half - distance is more than the velocity for half-time.