Physics, 31.03.2021 19:20 kayranicole1
2. A 220 g ball travelling East with a velocity of 4.2 m/s, collides with a 300 g ball at rest. A glancing
collision occurs and the ball that was at rest is now moving with a velocity of 2.1 m/s [E 40ᵒ S].
Determine the velocity (and direction) of the other ball. [6]
For question 2 above determine whether kinetic energy was conserved and explain by citing the type of
collision. [4]
Answers: 3
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What is the magnitude of the acceleration vector which causes a particle to move from velocity −5i−2j m/s to −6i+ 7j m/s in 8 seconds. answer in m/s.
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Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.
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Which of the following statements accurately describes the sign of the work done on the box by the force of the push? a. positive b. negative c. zero
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2. A 220 g ball travelling East with a velocity of 4.2 m/s, collides with a 300 g ball at rest. A gl...
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