Question

A body travel a distance of 2metre in 2 sec and 2.2 metre in next 4 sec. What will be the velocity of the body at the end of the 7second from the start

Answer 1

Hola

____________
Here is Ur answer
Given
Two cases
At first case s = 2 and t=2

At second case s=2.2 and t=4

Wkt
s= ut + 1/2 a t^2

2 = u 2 + 1/2 a 2^2 

1= u + a ...... 1

Total distance
2+2.2 =4.2

4.2 = u *7 + 1/2 a *7*7 

8.4 = 14 u + 49 a ......2


Solving 1 and 2 l

u+a= 1 
14 u + 49 a = 8.4 

After solving We get

U=1.16 and a = -0.16


After 7 second velocity
V= 1.15-0.16*7
V=0.04 m/s

________________

Hope it's helpful for u
Plz mark as best