Question

please answer my question​

Answer 1

Answer:

A car moving with initial velocity of um/s. ofter applying the breaks,it retardation is 0.5m/s and it stop after 20sec . find the initial velocity and distance traveled by the car . ofter applying breaks

Answer 2

Answer:

option(b) is the correct answer.

Explanation:

Given $x-t$ equation is   $x=2t+1$

Then $v-t$ equation is calculated by differentiating the $x-t$ equation with respect to time(t).

=>  $\frac{d}{dt}(x)= \frac{d}{dt}(2t+1)$

=> $v = 2+0$

=> $v=2m/s$

So, $v-t$ graph is a straight line not passing through origin.