is it possible that the speed of a body changes while its velocity remains the same
Answers
yes because the velocity is the rate of change of displacment but the speed is the distance moves in particular time
If you know what is an accelaeration in general, probably you would not ask such question. Acceleration is the a change in velocity per unit time,i.e a=dV/dt.Aso V is avector which means a is a vector too.The change is either in the speed or in direction,or in both,but any change in dV(increasing or decreasing) will affect a.This for a stright motion.For circular motion a=V^2/r,where the acceleration is toward the center of motion,and r is the radius,in this case if V chnges with constant r ,a will be affected,i.e .changes,and if r decreases or increases with V constant,also a will be affected,changes.Now if the changes in V and r are balanced,keeping the same v^2/r ratio,then a is not changing.You have to play with all the posibilities.