Question

The velocity time graph of a particle moving in a straight line is given in the following figure. Which of the following is incorrect?

(A) acceleration of particle at t = 9sec is -2.5 m/s
(B) acceleration of particle at t = 16 sec is 5/8 m/s?
(C) displacement during first 10 sec is 135 m
(D) displacement during first 10 sec is 105 m

please answer !!​

Answer 1

Answer:

d is incorrect

Step-by-step explanation:

first in acceleration unit should be m/s^2

the displacement in VT graph is always calculated through area under graph

here in 10s

its

4*10+1*5*4/2. + 15*4 +. 2*10+5*2/2

40+10+60+20+5=135