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:
[tex]v=u+at[/tex]
where
v is the final velocity
u is the initial velocity
[tex]a=g=-9.8 m/s^2[/tex] 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
[tex]t=\frac{v-u}{a}=\frac{0-35}{-9.8}=3.57 s[/tex]
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