Which one of the following situations is not possible? a body has zero velocity and non-zero acceleration. a body travels with a northward velocity and a southward acceleration. a body travels with a northward velocity and a northward acceleration. a body travels with a constant velocity and a constant non-zero acceleration. a body travels with a constant acceleration and a time-varying velocity.

Explanation:

A body has zero velocity and non- zero acceleration. It is possible as at the time when a body thrown upwards is at the top of the height. In that case velocity is zero but acceleration is equal to g.

A body travels with northward velocity but southward acceleration . it is also possible as in case when a body is going with northward velocity  but when break is applied acceleration becomes  southward.

A body travels with northward velocity and northward  acceleration . it is also possible as in case when a body is going with northward velocity  and  when accelerator  is applied . Acceleration becomes northward.

A body travels with constant velocity and a constant non zero acceleration . It is not possible . When there is acceleration , there must be a a change in velocity either in terms of magnitude or direction or both.

A body travels with a constant acceleration and a time varying velocity. It is possible. Time varying velocity represents acceleration.

close lines strong magnet less close weaker

which piece of furniture will have the most inertia and give the furniture movers the most difficulty in moving?  

answer

a 75kg dining table