Question

Figure shows the position of a particle moving on
the x-axis as a function of time
Х
(m)
20-
10
t(s)
0
2
6
8
(1) The particle has come to rest 4 times
(2) The velocity at t = 8 s is negative
(3) The velocity remains positive for ( = 2 s to
f = 6 s
(4) The particle moves with a constant velocity​

Answer 1

Answer:

the particle has come to rest 4 times

Answer 2

Answer:

The option 1 is correct.

When the position wave change it's direction the particle should get rest and again start to opposite direction.

See the attachment.

At that points the particle change it's velocity positive to negative or vice versa.

So get 4 points and thus the particle has come rest 4 times.