Question

In nth second displacement covered by an object is 4n-3 metre. Find displacement and velocity in 100 seconds

Answer 1

In this question we have been given the function of the displacement.

Through differentiation, we can get the velocity function of the moving object.

Let displacement function be S then :

S = 4n — 3

V is thus :

ds / dn = 4

At t = 100

S = 4 × 100 — 3 = 397 m

The velocity is 4m/s