Question

PLEASE ANSWER URGENTLY:

The displacement, x, is related with time as t= (root x ) + 3. Find the velocity when t= 4s.

OR

The displacement of an object is given in meters as x = 18t + 5t^2. Calculate instantaneous velocity at t= 2s and average velocity between t = 2s and t = 3s

Answer 1

Answer:

0.25 m/s

Explanation:

s=x

t=√x +3=4

v=?

[√x+3=4]

√x=4-3

√x=1

x=√1

X=1

v=d/t

=1/4 m/s

=0.25 m/s