If an object starts from a point a certain an amount of time ahead of the other ,how to calculate the minimum amount of time difference for which it is impossible for object 2 to catch up on object 1? This the information;(adsbygoogle = window.adsbygoogle || []).push({});

Object 1 starts at a initial velocity of 0 with a constant acceleration of 1m/s^2.

Object 2 starts at a initial velocity of 4.5m/s with a constant acceleration of 0.

Let the amount of time be u.

Calculating the discplacement of object 1 after u.

d=(u^2)/2

Calculating the final velocity;

v=1u

Now the discplacement of object 2:

d=4.5t

The discplacement of object 1:

d=t^2/2 + ut + (u^2)/2

Now for what value of u,

t^2/2 + ut + (u^2)/2 > 4.5t

for any value of t?

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# Homework Help: Calculating minimum amount of time

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