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How to read log & anti log table??????

the speed of a projectile when it is at its greatest height is root(2/5) times its speed at half the max height . what is the angle of projection ?

what is triangle law of vector addition

A particle is projected vertically upwards from point A on the ground. It takes t1 time to reach a point B but it still continues to move up. If it takes further t2 time to reach the ground from po...what is polar vector and axial vector?

Derive relation between linear velocity and angular velocity

a glass wind screen whose inclination with the vertical can be changed is mounted on a car. the car moves horizontally with a speed of 2m/s. at what angle alpha with the vertical should the wind sc...

Define centripetal acceleration. Derive an expression for the centripetal acceleration of a particle moving with uniform speed v along a circular path of radius r.discuss the direction of this acce...(a)The time of fligh...

How collinear vectors can be parallel?please give me the answer

how to use a log book to find natural sines and natural cos ?

A person moves 30m north then 20m east and finally 30 root 2 m south west .find the displacement from original position

a ball is projected on smooth inclined plane in direction perpendicular to line of greatest slope with velocity of 8m/s. find its speed after 1 sec

The resultant of two vectors A and B is perpendicular to vector A and its magnitude is equal to half the magnitude of vector B ,Find the angle between A and B?

The relation between time(t) and distance(x) is t=Ax^2 + Bx, A and B are constants. Prove that its retardation is 2Av^3.

a particle is projected from a horizontal plane (x-z plane) such that its velocity vector at time t is given by v = ai + (b-ct)j . its range on the horizontal plane is given by__?

a)ba/c b) 2ba/c ...

define positive,negative and zero work with examples

A particle moves in the x-y plane and at time t is at the point whose coordinates are (t2,t3,-2t). Then at what instant of time will its velocity and acceleration vector sbe perpendicular to each o...

A particle is moving along a circular path of radius 5m with a uniform speed of 5m/s. What will be the average acceleration when the particle completes the half revolution? (Ans : 10/pi m/s)

satae and explain polygon law of vectors

a projectile is thrown horizontally from top of a tower strikes the ground after 3sec at an angle 45

^{0}with horizontal.find height of tower and speed which body was projected.{g=9.8m/s^{2}}Can you prove that path of a projectile is a parabola....???

THE VECTOR SUM OF N COPLANAR FORCES ,EACH OF MAGNITUDE F,WHEN EACH FORCE IS MAKING AN ANGLE OF

2pi/N WITH THE PRECEDING ONE IS.

SIR/MADAM,COULD YOU PLEASE EXPLAIN AND SOLVE THIS SUM.