Question

What does the intersection moan? Which object is moving faster? Which object has a negative velocity according to the convention we have established? Which object is moving faster? Which starts ahead? Explain what you mean by "ahead."

Answer 1

6)a ) B

b ) A starts ahead as at time t=0 its position >0

ahead means starts moving earlier

7) a) A

b) B

8) a )A

b) A

by ahead i mean which prticle is ahead at t=0

Answer 2

1)velocity is defined as v=dr/dt where r is displacement.

so v= slope of displacement time graph. now in graph slope of B>A

hence B is moving faster.

b)A starts ahead its position at t=0 is greater than the position of B.

c)at intersection both objects are at same position.

2)from same logic velocity of A>B

and B has negetive velocity as slope is negetive.

3) A is moving faster than B.

A starts ahead as its position at t=0 is greater than the position of B