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irina1246 [14]
3 years ago
11

If there is no slipping, a frictional force must exist between the wheels and the ground. in what direction does the frictional

force from the ground on the wheels act? take the positive x direction to be to the right.
Physics
1 answer:
djyliett [7]3 years ago
8 0
The frictional force is always act in opposite direction of motion. if wheels is moving in +x axis or right then the f force is act in -x or left
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Hot air balloon with a kinetic energy of 76550J and a mass of 1890kg.<br> what’s the velocity?
lukranit [14]

Answer:

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6 0
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If an object moving at 5 m/s accelerates for 30 seconds at a rate of 2
klasskru [66]

Answer:

V=u + at

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U= Initial velocity

a= acceleration

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Explanation:

4 0
3 years ago
As a pole of a 2nd-order discrete-time system moves away from the origin in the z-plane, while its phase remains constant, the d
Rudik [331]

Answer:

False

Explanation:

When the location of the poles changes in the z-plane, the natural or resonant frequency (ω₀) changes which in turn changes the damped frequency (ωd) of the system.

As the poles of a 2nd-order discrete-time system moves away from the origin then natural frequency (ω₀) increases, which in turn increases damped oscillation frequency (ωd) of the system.

ωd = ω₀√(1 - ζ)

Where ζ is called damping ratio.

For small value of ζ

ωd ≈ ω₀

4 0
3 years ago
What is the kinetic energy of a 3.8kg ball that is rolling at 2.2 m/s
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Kinetic energy =  0.5 x m x v²
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3 0
3 years ago
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