Question

8. The acceleration time graph of a particle moving in a straight line is as shown in figure. The velocity of the particle at time t = 0 is 2 m/s. The velocity after 2 seconds will be
(B) 6 m/s
(a) 8m/s
(C) 4 m/s
(D 2 m/s

Answer 1

Answer:

6 m/s

Explanation:

The acceleration time graph of a particle moving in a straight line is as shown in figure. The velocity of the particle at time t = 0 is 2 m/s. The velocity after 2 seconds will be  

(B) 6 m/s  

(a) 8m/s

(C) 4 m/s  

(D 2 m/s

V = u + at

u = 2m/s

at = Area under graph

at = (1/2) (2) ( 4) = 4

V = 2 + 4 = 6 m/s

Answer 2

Answer:The acceleration time graph of a particle moving in a straight line is as shown in figure. The velocity of the particle at time t = 0 is 2 m/s. The velocity after 2 seconds will be  

(B) 6 m/s  

(a) 8m/s

(C) 4 m/s  

(D 2 m/s

V = u + at

u = 2m/s

at = Area under graph

at = (1/2) (2) ( 4) = 4

V = 2 + 4 = 6 m/s