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1. ### A 9.35 kg block is being lowered down a ramp, inclined at θ = 39 degrees, by the 4.05 kg pulley. The pulley has a radius of 45.0 cm ?

... the pulley is tangential force Ft acting on pulley radius R T = Ft R Moment of inertia for disc of mass...

2 Answers · Science & Mathematics · 27/11/2020

2. ### What is the magnitude of the force of centripetal acting on the cart when it is at the top of the loop?

... to keep the cart on a circular path is F = mv²/ R = 475(20.0²)/25.0 = 7600 N This may be the answer you ...

1 Answers · Science & Mathematics · 23/11/2020

3. ### What is the coefficient of friction required to keep the bicyclist on the road?

...mu is coefficient of friction Centrifugal force Fcf = m v^2 / r Ffr = Fcf mu m g = m v^2 / r m cancels mu = v^2 / ( r g...

1 Answers · Science & Mathematics · 18/11/2020

4. ### a) what is the centripetal acceleration of the stone? b) what is the tension on the chain?

a)a=  v^2 / r = 400/2 = 200 m/s^2 b) F = ma = 10 * 200 = 2000N  ( approximately 200kg weight equivalent assuming no mass is in the chain )

2 Answers · Science & Mathematics · 18/11/2020

...convention, the gravitational PE at the surface is GPE₁ = -GmM / r GPE₁ = -6.674e−11N·m²/kg² * 1.60e3kg * 7.25e22kg / 1.7e6m...

1 Answers · Science & Mathematics · 17/11/2020

6. ### How fast must the car travel so the road does not exert force on the car?

For the normal force to be zero, the centripetal acceleration must equal gravity (mass irrelevant): v²/ r = g v = √(gr) = √(9.8m/s² * 60m) = 24 m/s

2 Answers · Science & Mathematics · 17/11/2020

7. ### What is the minimum speed the bucket can travel so no water spills out?

Centripetal force must equal weight mV²/ r = mg V² = rg = 0.98•9.8 V = 3.05 m/s Centripetal force...

1 Answers · Science & Mathematics · 17/11/2020

8. ### What is the tension in the string at the bottom position (magnitude only)?

...4.5)π)² + (2.2)(9.8) = 129 NCentripetal force f = mV²/ r = mrω²   ω is angular velocity in radians/sec...

1 Answers · Science & Mathematics · 17/11/2020

9. ### Which statement correctly describes the motion of the child on the edge of the merry-go-round as it goes around at a constant speed?

... (centripetal, or radial) acceleration has direction toward the center of the m-g- r ; this direction also changes with the motion. The magnitudes...

2 Answers · Science & Mathematics · 08/11/2020

10. ### What is the magnitude of the centripetal acceleration of the plane?

period T = 2*60 = 120 sec  centripetal acceleration ac : ac = ω ^2* r = (2PI)^2/T^2*6564/2 = 39.5/(1.44*10^4)*3.282*10^3 = 9.00 m/sec^2

1 Answers · Science & Mathematics · 08/11/2020