Kinematics Doubt

in this problem, why can't we take the height as 2 m while calculating the time of flight for finding umin?
If the take height as 2m then time of flight increases, which overall decreases the horizontal velocity

iTeachChem Helper•4/24/25, 6:09 AM

@Gyro Gearloose

iTeachChem Helper•4/24/25, 6:09 AM

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PPercy in this problem, why can't we take the height as 2 m while calculating the time ...

Opt•4/24/25, 6:11 AM

t = √(2•∆h/g)

Opt•4/24/25, 6:11 AM

You need to take the height difference

Opt•4/24/25, 6:11 AM

Not the total height

Opt•4/24/25, 6:12 AM

You can think of it like this.

Given that I launched the ball off a 1m high platform, what velocity should it have such that it lands between √5 and 2√5 from the base of the platform?

PercyOP•4/24/25, 6:15 AM

But what if someone throws the marble in such a way that it directly reaches the bottom of the box instead of aiming for the top? Wouldn't that path require the least possible velocity?

PPercy But what if someone throws the marble in such a way that it directly reaches the...