# Study+Guide+for+Test+3 2.pdf - COLLEGE PHYSICS PHY2053...

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COLLEGE PHYSICS PHY2053 Page 1 STUDY GUIDE FOR TEST 3 CHAPTER 5 x Review Practice Problems Canvas/Module 5/Ch 5 x Solve the following additional practice problems Additional problems 1.A satellite orbits the Earth in uniform circular motion. What is the direction of centripetal acceleration of the satellite? A)Because the centripetal acceleration is a scalar quantity, it doesn’t have a direction.B)The centripetal acceleration vector points radially outward from the Earth. C)The centripetal acceleration vector points radially inward toward the Earth. D)The centripetal acceleration vector points in the direction of the satellite’s velocity.E)The centripetal acceleration vector points in the direction opposite that of the satellite’s velocity. 2.The maximum speed at which a car can safely negotiate a frictionless banked curve depends on all of the following except 3.The earth exerts the necessary centripetal force on an orbiting satellite to keep it moving in a circle at constant speed. Which statement best explains why the speed of the satellite does not change although there is a net force exerted on it? 4.Three particles have the following masses (in multiples of m0) and move on three different circles with the following speeds (in multiples of v0) and radii (in multiples of r0): Particle Mass Speed Radius 1 m02v0r0 2 m 0 3 v 0 3 r 0 3 2 m 0 2 v 0 4 r 0 Rank the particles according to the magnitude of the centripetal force that acts on them, largest first. O g FCP = FF q)y§y " " O O
[ 2 3 . centripetal Force Produces a centripetal acceleration . * fcp is always perpendicular to its velocity . 4 . 2 Mo 3 VO 3 ro 3 . 2 Mo 2V0 4 ro
Fcp=mV Fcp , = Mo÷VDZ=4mg ! Fcpz=mo% =3moY FCP3= 2mq% = 8m%÷ =2mgoVo * Fi ,F2iF3
COLLEGE PHYSICS PHY2053 Page 2 D) 2, 3, 1 E) 3, 2, 1
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