Question

9.
If velocity v of a particle moving on a straight line
as a function of time t is given as v = 5-t (m/s)
then the distance covered by the particle in first
10 s is
(2) 15 m
(1) 5 m
(3) 25 m
(4) 50 m
​

Answer 1

Explanation:

Displacement/time=velocity

s/t=v

ie s=vt

Here v depends on t. hence v is a variable velocity(v=5-t).

Hope it was helpful.

We have to use integration here because velocity is a variable.