can you answer 1 and 3 pls. LAR MOTION, KEPLER'S LAWS,NEWTON'S LAW OF UNIVERSAL GRAVITATION*Show all work on a separate sheet.1. A student swings a mass of 0.120 kg tied to one.end of a cord in a horizontal circle of radius 1.00m so that its tangential speed is 2.00 m/s. Whatis the centripetal force acting on the massi2. What centripetal force is needed to keep a 2-kgmass moving at a constant speed of 4 m/s in acircle having a radius of (a) 4 m; (b) 8 m?J3. An auto having a mass of 1500 kg makes a turnon a banked circular track of radius 200 m at aspeed of 20 m/s. What centripetal force does the.track exert on the auto?4. The moon has a period of 27.3 days and a meanDistance of 3.90 x 105 km from the center ofEarth. Use Kepler's Third law to find the periodof a satellite in orbit 6.70 x 10³ km from thecenter of Earth. Express your answer in minutes.10. A 450-gram ball attached to bl5. Achild having a mass of 30 kg sits 4.0'm fromthe center of a merry-go-round that is rotatingwith a period of 10 s. What is the centripetalforce acting upon the child?16. What centripetal force is needed to keep a massof 2,0 kg moving on a smooth floor in a circularpath of radius 0.50 m and making one revolution,every 4 s?7. In order to swing a 0.1-kg.mass tied to one endof a cord in a horizontal circle of radius 0.5 mSo that its tangential speed is 0.2 m/s, what cen-tripetal force must you exert on the mass throughthe cord?8. Calculate the gravitational force of attractionbetween a mass of 50 kg and a mass of 60 kg.when they are 2.0 m apart.9. A student attaches a mass of 0.5 kg to one end ofa rope. The student then swings the mass in ahorizontal circle having a radius of 1 m so that itstangential speed is 4 m/s. What centripetal force,must be exerted on the mass to keep it moving ina circle?

Given data: Mass (m) = 0.120 kg Radius (r) = 1.00 m Tangential speed (v) = 2.00 m/s Required:…

Answered: A student swings a mass of 0.120 kg…

A student swings a mass of 0.120 kg tied to one. end of a cord in a horizontal circle of radius 1.00 m so that its tangential speed is 2.00 m/s. What is the centripetal force acting on the mass?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter7: Gravity

Section: Chapter Questions

Problem 64PQ

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Concept explainers

Centripetal Force

A particle, body, object or certain mass while travelling in a rotational path or semicircular path, experiences an inertia force. If that inertia force pulls the towards the inward of the imaginary circle in the rotation, it is termed as centripetal force.

Question

can you answer 1 and 3 pls.

LAR MOTION, KEPLER'S LAWS,
NEWTON'S LAW OF UNIVERSAL GRAVITATION
*Show all work on a separate sheet.
1. A student swings a mass of 0.120 kg tied to one.
end of a cord in a horizontal circle of radius 1.00
m so that its tangential speed is 2.00 m/s. What
is the centripetal force acting on the massi
2. What centripetal force is needed to keep a 2-kg
mass moving at a constant speed of 4 m/s in a
circle having a radius of (a) 4 m; (b) 8 m?
J
3. An auto having a mass of 1500 kg makes a turn
on a banked circular track of radius 200 m at a
speed of 20 m/s. What centripetal force does the.
track exert on the auto?
4. The moon has a period of 27.3 days and a mean
Distance of 3.90 x 105 km from the center of
Earth. Use Kepler's Third law to find the period
of a satellite in orbit 6.70 x 10³ km from the
center of Earth. Express your answer in minutes.
10. A 450-gram ball attached to bl
5. Achild having a mass of 30 kg sits 4.0'm from
the center of a merry-go-round that is rotating
with a period of 10 s. What is the centripetal
force acting upon the child?
1
6. What centripetal force is needed to keep a mass
of 2,0 kg moving on a smooth floor in a circular
path of radius 0.50 m and making one revolution,
every 4 s?
7. In order to swing a 0.1-kg.mass tied to one end
of a cord in a horizontal circle of radius 0.5 m
So that its tangential speed is 0.2 m/s, what cen-
tripetal force must you exert on the mass through
the cord?
8. Calculate the gravitational force of attraction
between a mass of 50 kg and a mass of 60 kg.
when they are 2.0 m apart.
9. A student attaches a mass of 0.5 kg to one end of
a rope. The student then swings the mass in a
horizontal circle having a radius of 1 m so that its
tangential speed is 4 m/s. What centripetal force,
must be exerted on the mass to keep it moving in
a circle?

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