a, find height vertical
from energy
mgh=1/2 15^2-1/2 2^2
solve for vertical height h.
then, sin10=h/length solve for length.
b. vf=vi+at
but a= g*sin10
so solve time t.
A skier is gliding along at 2.0 m/s on horizontal, frictionless snow. He suddenly starts down a 10 ∘ incline. His speed at the bottom is 15 m/s .
a).What is the length of the incline?
b).How long does it take him to reach the bottom?
(Please show work)
1 answer
1 answer