Question

an object with uniform velocity of 4 metre per second. calculate the displacement in 4 seconds. draw displacement time graph and velocity time graph to represent the motion. what is the acceleration of an object​

Answer 1

Explanation:

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

v=

t

2

−t

1

s

2

−s

1

In the given graph,

v=

4−2

40−20

=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.