Question

find the value of u if v=9 a=2 t=2​

Answer 1

Answer:

5

Step-by-step explanation:

formula - u+at = v

given v= 9, a= 2, t=2

u+ 2*2= 9

u+4 =9

u = 9-4

=5

Answer 2

$\bold{\huge{\underline{\rm{ Given :}}}}$

Final Velocity (v) = 9

Acceleration (a) = 2

Time (t) = 2

$\bold{\huge{\underline{\rm{ To\:Find :}}}}$

The Initial Velocity (u).

$\rule{200}{1}$

$\huge{\underline{\purple{Solution→}}}$

Using the Equation of motion :-

• v = u + at

→ 9 = u + 2 × 2

→ 9 = u + 4

→ u = 9 - 4

$\boxed{→\:u = 5}$

$\rule{200}{1}$

Equation of motion :-

• In the first equation of motion , the final Velocity (v) of an object is equal to Initial Velocity (u) of the object plus acceleration (a) multiply time (t).

$\rule{200}{1}$

I hope it will help you.