Question

A car is travelling at 18m/s accelerates ti 30m/s in 3seconds. what's the acceleration of the car​

Answer 1

`\Large {\underline { \sf {Required \; Solution :}}}`

We have ―

• Initial velocity, u = 18 m/s
• Final velocity, v = 30 m/s
• Time taken, t = 3 seconds

We've been asked to calculate acceleration.

`\qquad \implies\boxed{\red{\sf{ a = (v-u)/(t) }}}\\`

• a denotes acceleration
• v denotes final velocity
• u denotes initial velocity
• t denotes time

`\twoheadrightarrow \quad \sf {a = (30-18)/(3) \; ms^(-2) } \\`

`\twoheadrightarrow \quad \sf {a =\cancel{ (12)/(3) \; ms^(-2) }} \\`

`\twoheadrightarrow \quad \boxed{\red{\sf{ a = 4 \; ms^(-2) }}}\\`

Therefore, acceleration of the car is 4 m/s².