He's talking about relative velocity and frames of motionOriginally posted by limywv:what toking you?
Originally posted by ditzy:Coz you're moving with the fcuking bus.![]()
i will now give the most logical answer...Originally posted by AMEN567889:Why is it on the bus you jump, u will still land on the exact same spot?
Hint: think of projectile motion![]()
hahaha. brush up on your physics first lah. you level one skill is not even there. Inertia is not defined that way. Instead, it is "The unwilling of an object to change its state of motion or resists acceleration"Originally posted by Scania N113CRB luver:Wrong ! Inertia has nothing to do here.Only when starting off and slowing down then inertia comes into effect .
Inertia is termed as "The unwillingness of an object to start moving from rest and the unwillingness of an object to stop while moving."
COOL!Originally posted by Vigelic:Food for thought: If the Earth stopped spinning all of a sudden, what would you do?
Note: The Earth spins at a speed of 1,670 km/h from west to east. (Speed at equator) - which means that your keyboard is moving at 1,670km/h as well!
(speed of earth's orbit around the sun and the speed of the solar system's movement relative to the milky way and the universe not factored into this equation)
P.S. if the Earth stopped spinning right now, everything would fly at a speed of 1,670 km/h towards the east initially. Just imagine Earth as the bus doing an E Brake and everything else as the dumb idiot who tried jumping during an E brake.
Originally posted by deathbait:Imagine the train coming to a sudden stop while he is still in the air... ouch.
Obviously if the train changes it's horizontal acceleration while the boy is in midair, the boy will land on a different spot.
how sudden? 80 to 0 kmh in 0.001 second?Originally posted by Deadly:Imagine the train coming to a sudden stop while he is still in the air... ouch.
nice explanationOriginally posted by Vigelic:never mind. i don't know why i bothered.
he probably wouldn't mind if the solid object was a girl insteadOriginally posted by deathbait:well...
if the bus slows down from 80km/h to 40km/h in 1 second via the E brake, and the boy is in the air for that 1 second, it would still be painful.
80km/h = 1330m/min = ~22 meters per second
And that's just displacement.
Even if the boy was standing at the back end of the bus when he jumped, and the 22 meter displacement didn't put him against the front of the bus, he's still travelling at a net 40km/h forwards when his feet touch the floor of the bus.
Even if we assume he has the braking power to reduce that by half, 20km/h smash into a solid object can still be a painful experience.