Question

How much did you accelerate when starting from rest and traveling 500 meters in 20 seconds?

Answer 1

-16 m/s square is the right ans

Answer 2

Answer: The acceleration will be 2.5m/s².

Explanation: Given that,

u = 0 (initial velocity)

t = 20sec (time)

s = 500m (distance)

We know that,

$s = ut + \frac{1}{2}at^2\\500 = 0 + \frac{1}{2}a(20)^2\\a = \frac{500 * 2}{400} \\a = 2.5m/s^2$

The acceleration will be 2.5m/s².