Question

what is the acceleration of the car?​

Answer 1

Explanation:

45/8ms-2

I hope this is useful for you

Answer 2

$GIVEN:-$

• Initial velocity (v) = 54km/h = 15 m/s
• Distance (s) = 20 m
• Final velocity = 0

$TO\:FIND:-$

• Acceleration (a) = ?

$SOLUTION:-$

$\implies\:\:v^{2} = u^{2} + 2 as$

$\implies\:\:u^{2} + 2as = 0$

$\implies\:\:15^{2} + 2 \times a \times 20 = 0$

$\implies\:\: 225 + 40a = 0$

$\implies\:\: 40a = -225$

$\implies\:\: a = \dfrac{-225}{40}$

$\implies\:\:{\boxed{ a = -5.625\:ms^{-2}}}$