Nupur

hi, here r some questions i'm unable to answer. plz help me 1. Two particles A and B are projected from the same point with equal angle theta = 30 degrees from the horizontal. If A has the projection velocity VA = square root of 7 m/s and B has projection velocity VB = 2*square root of 7 m/s. find the separation 'd' between them when their velocity vectors become mutually perpendicular to each other. 2. 2 intersecting straight lines move translationally in opposite directions with velocities v1 and v2 perpendiculr to the corresponding lines. the angle between the lines is alpha. find the speed of the point of intersection of these lines. plzz post these solutions asap. thanks nupur

Hi, i hav a problem which i am unable to solve. it is from the chapter on trigonometry here goes: A vertical rod is fixed in a horizontal rectangular field ABCD. The angular elevations of its top from A, B, C and D are alpha, beta, gamma and delta respectively. Show that: cot^2 alpha - cot^2 beta=cot^2 delta - cot^2 gamma plzz help me with this and post the solution as soon as possible

hi, this is nupur. i live in india and am interested in science like no other thing, specially particle physics.