Question

6.
The acceleration time graph of a particle moving
along straight line is as shown in the figure. What
is the velocity of the particle at t=8 sec, if initial
velocity of particle is 3 m/s?
pa(m/s)
14
4
8
t(s)
0
-1
(1) 4 m/s
(2) 5 m/s
(3) 1 m/s
(4) 7 m/s​

Answer 1

Explanation:

The acceleration time graph shows straight line .

intial velocity 'u' = 3m/s , Time 't'= 8sec

acceleratio= -1m/

v= u+at

v=3+ 8×-1

v= 3-8

v=-5m/s