Question

show a displacement time graph for time.4 and displacement .4​

Answer 1

Explanation:

show a displacement time graph for time.4 and displacement .4

Answer 2

Explanation:

Velocity of a particle is equal to the slope of its displacement-time graph.

v=t2−t1s2−s1

In the given graph,

v=4−240−20=10 m/s

Velocity may be positive, negative or zero since it is a vector quantity. 

Note: When we draw graph of a vector (say displacement), each component (like component in x-direction) of the vector is drawn on a separate graph. So, for a 2-D motion, two graphs are needed to completely describe the motion of a particle.