Perpendicular slope to 3x-y=4
1 answer:
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Answer:
1.42 s
Explanation:
The equation for free fall of an object starting from rest is generally written as
where
s is the vertical distance covered
a is the acceleration due to gravity
t is the time
On this celestial body, the equation is
this means that
so the acceleration of gravity on the body is
The velocity of an object in free fall starting from rest is given by
In this case,
g = 20.08 m/s^2
So the time taken to reach a velocity of
v = 28.6 m/s
is
Answer:
3.90 degrees
Explanation:
Let g= 9.81 m/s2. The gravity of the 30kg grocery cart is
W = mg = 30*9.81 = 294.3 N
This gravity is split into 2 components on the ramp, 1 parallel and the other perpendicular to the ramp.
We can calculate the parallel one since it's the one that affects the force required to push up
F = WsinΘ
Since customer would not complain if the force is no more than 20N
F = 20
So the ramp cannot be larger than 3.9 degrees