Question

50. Figure shows the position of a particle moving on
the x-axis as a function of time

(1) The particle has come to rest 4 times
(2) The velocity at t = 8 s is negative
(3) The velocity remains positive for t = 2 s to
t = 6 s
(4) The particle moves with a constant velocity​

Answer 1

Answer:

the particle has come to rest 4 times.

Explanation:

(i)as we already know that velocity v is the tangent to the curve

so we can clearly se that there are only 4 points where the curve tangent is at 0 degree to the x-axis.

(ii)and the velocity is first increasing from t= 2s then decreasing from t= 4s

(iii)and from the curve its clear that the velocity is increasing in t = 8s

(iv)velocity is clearly increasing and decreasing so the velocity is not constant