A structure that extends from a bridge toform a firm foundation
2 answers:
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<h3><u>The velocity of the car after 10 s is 78.95 km/hr</u></h3>
Explanation:
<h2>Given:</h2>m = 1,250 kg
= 30 km/hr
F = 1,700 N
t = 10 s
<h2>Required:</h2>Final velocity
<h2>Equation:</h2><h3>Force</h3>F = ma
where: F - force
m - mass
a - acceleration
<h3>Acceleration</h3>a =
where: a - acceleration
- initial velocity
- final velocity
t - time elapsed
<h2>Solution:</h2><h3>Solve for acceleration using the formula for force</h3>F = ma
Substitute the value of F and m
(1700 N) = (1250 kg)(a)
a =
a = 1.36 m/s²
<h3>Solve for final velocity using the formula for acceleration</h3>- Convert 30 km/hr to m/s
=
=
- Substitute the value of a,
and t
a =
- Convert to km/hr
=
=
Answer:
Hello your question is incomplete attached below is the complete question
answer :
U/r = R = [ 1 -
] = 0
∴ No slip condition is satisfied
Explanation:
Given that
Outlet velocity U(r) = [ 1 -
]
<u>prove that the output velocity profile satisfies the no slip condition</u>
at no slip u = 0 ( i.e. at the pipe's inner surface )
at , r = R ( inference is at center )
hence U/r = R = [ 1 -
] = 0
∴ No slip condition is satisfied
