If object begins to move with speed `v_0`, what will be the speed of its image?

What is the speed?

Two satellites A and B go round a planet in circular orbits R and 2R respectively.If the speed of satellite A is 4 v ,then what will be the speed of satellite B?

If a body covers a three equal distances with speeds v_1,v_2 and v_3 then what is the average speed of the body?

An ant is approaching a convex lens with a uniform speed upto first focus.How would the speed of the image of the ant formed by lens change?

If a body travels for time 't' with speed v_1 and then it further travels for time 't' with speed v_2 find the average speed.

A body is moving on a curved path with a constant speed.What is the nature of its acceleration?

A vehicle travels half the distance L with speed V_1 and the other half with dspeed v_2 , then its average speed is