# motion in one dimension

by ranjitnepal
Tags: dimension, motion
 P: 6 when we throw an object upwards why the time of descent is greater rhan time of ascent?
 P: 200 It's not. The object's descent is just a time-reversed ascent, because total energy is conserved.
P: 2,351
 Quote by ranjitnepal when we throw an object upwards why the time of descent is greater rhan time of ascent?
What specific situation are you considering? In general, the two times will be about the same, with any difference being caused by air resistance acting differently on the ascent and the descent.

P: 6

## motion in one dimension

in case we consider air resistance
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P: 38,400
 in case we consider air resistance
Don't you think it would have been a good idea to tell us that initially?

The speed coming down will be less than the speed going up because the potential energy will be the same at the same height but the total energy will be less because of energy lost to air resitance. So kinetic energy will be less at the same height coming down than going up.