.A box falls to the ground from a delivery truck traveling at 30 m/s. After hitting the road, it slides 45 m to rest. How long does it take the box to come to rest

t = 3 seconds

Explanation:

Given that,

Initial speed, u = 30 m/s

Final speed, v = 0

It slides 45 m to rest.it take the box to come to rest

We need to find how long it take the box to come to rest.

Let a be the acceleration and t is time.

Now finding time.

So, the required time is 3 seconds.