Physics HW to be submitted on Bhadra 19 by Class XI

1.What is SHM? Show that the motion of loaded vertical spring is SHM. Also find its time period.

a.   2. Two vectors A and B are such that Vector A -Vector B=Vector C and A-B=C. Find the angle between them.

b.   3. Why does the particle have a uniform velocity along X-axis? Explain

       

       4. A ball is projected horizontally from the top of building and is dropped with zero velocity from the same point at the same time, which one will hit the ground first

       6.  If the displacement of a particle in given by the equitation. y=6sin(wt+π) then calculate the velocity and acceleration of particle

       7. At what distance from the mean position is the K.E equal to P.E in S.H.M

       8. Define linear, superficial and cubical expansivity. Establish the relation between them.

        9.The density of silver at 0⁰C is 10310kg/m³ and the coefficient of linear expansion is 0.000019⁰C^–1. Calculate the density at 100⁰C