Question

A roller coaster accelerates from an initial speed of 6.0 m/s to a final speed of 70 m/s over 4 seconds. What's the acceleration?

Answer 1

Acceleration=finalpoint-initialpoint/time
70m/s-6m/s/4
The answer is 16m/s^2

Answer 2

Answer:

$\boxed{ \bold{ \huge{ \boxed{ \sf{16 \: m/ {s} \: ^{2} }}}}}$

Step-by-step explanation:

Given,

Initial velocity ( u ) = 6 m/s

Final velocity ( v ) = 70 m/s

Time ( t ) = 4 seconds

Acceleration ( a ) = ?

Finding the acceleration

We know that,

$\boxed{\sf{acceleration = \frac{v - u}{t} }}$

⇒$\sf{ \frac{70 - 6}{4} }$

⇒$\sf{ \frac{64}{4} }$

⇒$\sf{16 \: m/ {s}^{2} }$

Hope I helped!

Best regards!