The motion of a particle is described by the equation x = at + bt2, where a = 15 cms−1 and b = 3 cms−2. Its instantanous velocity at t = 3 s will be
The motion of a particle is described by the equation X = at + bt2 , where a= 15cm s-1 and b =3cm s-2 . Its instantaneous velocity at t= 3 s will be ______ CM s-1.
Two particles of medium disturbed by the wave propagation are at x1=0 and x2=1 cm. The respective displacements (in cm) of the particles can be given by the equations: y1=2sin3πt,y2=2 sin(3πt−π8). The wave velocity is