Author Question: A particle moves in the xy plane in a circle centered on the origin. At a certain instant the ... (Read 166 times)

haleyc112 · **on:** Aug 1, 2020

Question 1

A particle moves at a constant speed in a circular path with a radius of 2.06 cm. If the particle makes four revolutions each second, what is the magnitude of its acceleration?

◦

20 m/s²

◦

18 m/s²

◦

13 m/s²

◦

15 m/s²

◦

24 m/s²

Question 2

A particle moves in the xy plane in a circle centered on the origin. At a certain instant the velocity and acceleration of the particle are 6.0

m/s and (3.0

+ 4.0

) m/s². What are the x and y coordinates of the particle at this moment?

◦

x = 0, y = −9.0 m

◦

x = 0, y = +7.2 m

◦

x = 0, y = +9.0 m

◦

x = 0, y = −7.2 m

◦

x = 6.0 m, y = −9.0 m

ms_sulzle · **Reply #1 on:** Aug 1, 2020

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