<span>stuntman's vertical velocity is
vy= 6 sin 15=1.55m/s.
Height that he goes up is,
vertical kinetic energy = mgh
1/2 v² = gh, h=v²/(2g)=0.12 m.
time wanted to go up= vy/9.8=0.16s, Time to fall through a height
0.12+2.9=3.02m is
t=sqrt(3.02*2/9.8)=0.78 s
Total time needed to go up and down is 0.78+0.16=0.94 s.
to calculate the horizontal range,
Horizontal velocity = 6 cos 15=5.8 m/s.
Distance which he can cover is
5.8*0.94=5.44 m.
If the distance between the two building is less than 5.44 m then he will be safe and he can jump that distance.</span>
An inclined plane has less of a mechanical advantage because it has to have more work to take so,etching up than down. I hope this makes sense.
The potato reach a velocity of 0 m/s after 3.57 s
Explanation:
There is only one force acting on the potato, which is in free fall: the force of gravity, acting downward. Therefore, the motion of the potato is a free fall motion with constant acceleration equal to the acceleration of gravity, and we can use the suvat equation:
![v=u+at](https://tex.z-dn.net/?f=v%3Du%2Bat)
where
v is the final velocity
u is the initial velocity
is the acceleration of gravity (negative since downward)
t is the time
For the potato in this problem:
u = +35 m/s
So the time t at which the velocity reaches
v = 0
is
![t=\frac{v-u}{a}=\frac{0-35}{-9.8}=3.57 s](https://tex.z-dn.net/?f=t%3D%5Cfrac%7Bv-u%7D%7Ba%7D%3D%5Cfrac%7B0-35%7D%7B-9.8%7D%3D3.57%20s)
Learn more about free fall here:
brainly.com/question/1748290
brainly.com/question/11042118
brainly.com/question/2455974
brainly.com/question/2607086
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Intensity being the physical parameter that describes the sound signal, sound stimulus, at the basilar membrane that we talked about last time. And, loudness being the perception of the sound signal intensity.
hope this helps:)sorry if it doesnt
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