2007-02-12 07:41:15 · 13 answers · asked by mukesh a 1 in Science & Mathematics ➔ Physics
Super Hero is here to save the situation & answer ur question
Coz when u r going up, u r opposing gravity, friction, .....etc.
BUT when u r going down, u r moving in the direction of gravity (it helps u), so u go down faster.
2007-02-12 07:48:35 · answer #1 · answered by Kevin 5 · 1⤊ 1⤋
Simple. When travelling up hill, you will be working against two forces, friction (from the moving parts of the cycle and air resistance) and gravity, which will try to pull you back to the bottom of the hill. When travelling down the other side you still work against friction, bus gravity works in your favour. So but in very simplistic terms, for the same ammount of effort you will go faster down hill than up hill. And as:
Distance travelled = Speed x Time
Time = Distance travelled / speed
So the larger the value for speed, the lower the value for time.
2007-02-12 22:36:14 · answer #2 · answered by steveflatman 2 · 0⤊ 1⤋
Because there are magical creatures who like to play practical jokes on you. As soon as you leave a place, they jack it up so you have to climb higher to get back.
Seriously, it's because you go slower uphill. If you can go down a hill in 60 seconds at 15 mph, when you back up it at 5 mph, it will take 180 seconds.
2007-02-12 15:52:43 · answer #3 · answered by sojsail 7 · 0⤊ 1⤋
As stated it not to travel futher up hill than down if you are start and ending at the same point, however many of us unfit ones take a long to cylce up than down, which is why is will take longer.
In science terms- slower velocity equals longer time between to points
2007-02-12 15:51:36 · answer #4 · answered by Blondie the second 3 · 0⤊ 1⤋
Gravity may have a lot to do with this phenomenon
Uphill is much harder work,
for your motor cycle engine .
as it has to pull all the weight,
against the pull of natural gravity .
Going downhill is a breeze! ! ! !
as the weight of you and your m/ cycle,
are naturally pulled downwards ,with the gravitational force.
Be careful ,
it is also much harder to slow down and stop!!!
>^,,^<
2007-02-12 15:59:50 · answer #5 · answered by sweet-cookie 6 · 0⤊ 1⤋
if you start and finish at the same point, then this is impossible.
however more energy will be spent cycling uphill than downhill, as on the way down you have gravity helping.
on the way up, you are storing your energy as gravitational potential energy - ready for release later. (on the way down)
2007-02-12 15:45:35 · answer #6 · answered by aeronic 2 · 0⤊ 1⤋
Because you do spend more time going up - you are going slower then going down
2007-02-12 16:43:24 · answer #7 · answered by Professor 7 · 0⤊ 1⤋
A little thing called gravity.
2007-02-12 16:29:41 · answer #8 · answered by Anonymous · 0⤊ 1⤋
Because your front wheel is larger than your back wheel.
..so you always appear to be riding 'up hill'.
2007-02-12 15:56:01 · answer #9 · answered by knowitall 4 · 0⤊ 2⤋
Could it possibly be that you cycle more slowly uphill than you do downhill. It's a longshot but it might be right!
2007-02-12 15:50:59 · answer #10 · answered by explorer267 2 · 1⤊ 1⤋