Answer:
4180 N
Explanation:
In order to keep the truck balanced and stationary, the force of friction on the truck must be equal to the component of the weight of the truck acting parallel to the slope.
The component of the weight of the truck acting parallel to the slope is:
where
m = 3500 kg is the mass of the truck
g = 9.8 m/s^2 is the acceleration of gravity
is the angle of the slope
Therefore, the force of friction must be equal to
The average power output is the ratio between the work done to compress the spring, W, and the time taken, t:
(1)
The work done is equal to the elastic energy stored by the compressed spring:
where
is the spring constant and
is the compression of the spring. If we substitute the numbers, we find:
And now we can use eq.(1) to calculate the average power output:
Answer:
because in the roller coaster you have a big seat belt soo you won't fall
Answer= 12.5 km
0.5 km x km
_______=______
1 min 25 min
Cross multiply
1x=12.5
divide both sides by 1
x=12.5
You traveled 12.5 km
Answer:
it is a measure of the heat content of fuels or energy sources
Explanation:
