Q The velocity of a particle is expressed as v = kx2 where v is the velocity and x - Physics - Work Energy And Power

Question

Q The velocity of a particle is expressed as v = kx2
where v is the velocity and x is displacement along X axis The
particle is at origin ( 0,0) initially (t = 0 ) The kinetic energy
of particle after 2 second is
(A) 5J (B) 2 J (C) 0 (D) none of these

Chandra Prakash · Accepted Answer

dear student
as v=kx2 dx/x2 =kdt integrate both sides -1/x = kt     k=-1/xt when x= 0 t=0 or k =infinity as x= -1/kt  v=dx/dt =1/kt2  as k = infinite so v=0 or KE remains zero

Q. The velocity of a particle is expressed as v = kx2 where v is the velocity and x is displacement along X axis . The particle is at origin ( 0,0) initially (t = 0 ) . The kinetic energy of particle after 2 second is (A) 5J (B) 2 J (C) 0 (D) none of these

Q. The velocity of a particle is expressed as v = kx² where v is the velocity and x is displacement along X axis . The particle is at origin ( 0,0) initially (t = 0 ) . The kinetic energy of particle after 2 second is
(A) 5J (B) 2 J (C) 0 (D) none of these