Answer:
a.
b. decrease
c. 43.5psi
Explanation:
Answer:
a.
Explanation:
from the questions, the car has four tires which support the weight equally.we can conclude that the weight support by each tire is
weight support of each tire =1420/4=355kg.
a. since
we need to determine the force,
the "g" is the acceleration due to gravity which has a constant value of
hence the force on each tire is
Also, since the pressure is giving in psi, we have to convert it to pascal
since 1psi=6895pascal
hence 35psi to pascal is
.
From the expression for pressure
we have
to cm we multiply by
b. The effect of the pressure can be determine from the relationship between the pressure and the area using the pressure formula
hence an increase in the pressure will lead to a decrease in the contact Area
C. if the area ia now converting to meter square
the pressure now is
converting to psi we have
It would be static friction which is what you have to overcome when an object is not in motion. When you move an object friction works against it like gravity and air resistance. I hope this helps!
Answer:
The velocity of the stone is , v = 4.45 m/s
Explanation:
Given data,
The mass of the rock, m 50 kg
The length of the string, r = 1.0 m
The breaking force of the string, F = 990 N
If the rotated in a circular motion with the string, the string breaks when the centripetal force exceeds 990 N.
The centripetal force is given by the formula,
<em> F = mv²/ r</em>
∴ v = √(Fr/m)
= √(990 x 1 / 50)
= 4.45 m/s
Hence, the velocity of the stone is , v = 4.45 m/s
Answer:
<h2>14.55 m</h2>
Explanation:
The height of the hill can be found by using the formula
where
m is the mass
h is the height
g is the acceleration due to gravity which is 10 m/s²
From the question we have
We have the final answer as
<h3>14.55 m</h3>
Hope this helps you
Answer:
95m
Explanation:
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