Clarify the positive effects of national project of pride that is in operation in your province in four points

A particle is projected upwards from the top of a tower. Treat point of projection as origin and upwards as positive. Consider three point on its path such that at ( s represents displacement from origin and v represents velocity). (i) s gt 0, v gt 0 (ii) s gt 0, v lt 0 (iii) x lt 0, v lt 0 Which of the following correctly indicates the distance travelled by particle since its projection to respective points in apalphariate order ?

A particle is suspended by a light vertical inelastic string of length 1 from a fixed support. At its equilbrium position it is projected horizontally with a speed sqrt(6 g l) . Find the ratio of the tension in the string in its horizontal position to that in the string when the particle is vertically above the point of support.

A point dipole with an electric moment p oriented in the positive direction of the z axis si located at the origin of coordinates. Find the projections E_(z) and E_(_|_) of the electric field strength vector (on the plane perpendicular to the z axis at the poiny S . At which points is E perpendicular to p ?

A ball is projected from the ground with speed u at an angle alpha with horizontal. It collides with a wall at a distance a from the point of projection and returns to its original position. Find the coefficient of restitution between the ball and the wall.

A body is projected vertically upwards.At its highest point it explodes into two pieces of masses in the ratio of 2:3 and the lighter piece flies horizontally with a velocity of 6 ms^(-1) .The time after which the lines joining the point of explosion to the position of particles are perpendicular to each other is