1) why tangential acceleration 1.2 m/s^2 ??? ( if given rate increasing a that means that is tangential acceleration ??? ) A particle moves in a circular path of 0.4 m radius. Calculate the magnitude of the acceleration of the barticle a. a) If its speed is constant at 0.6 ms1. b)lf its speed is 0.6ms-1 but is increasing at the rate of 1.2 ms1 each second. why

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Chapter4: Motion In Two And Three Dimensions
Section: Chapter Questions
Problem 85AP: A propeller blade at rest starts to rotate from t=0 to t=5.0s with a tangential acceleration of the...
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I have actually got two doubts can you help me with these doubts please 

Two inquiry I got ...
1) why tangential acceleration 1.2 m/s^2 ??? ( if given rate increasing a that means that is tangential
acceleration ??? )
A particle moves in a circular path of 0.4 m radius. Calculate the magnitude of the acceleration of the
particle a.
(a) If its speed is constant at 0.6 ms-1.
(b)lf its speed is 0.6ms1 but is increasing at the rate of 1.2 ms1 each second.
why
v2
an
(i)
(ii)
a =1.2 m/s²
an
0.62
0.62
0.4
0.4
= 0.9 m/s²
= 0.9 m/s?
2) for this Jet why ma is drawn to be right (directed why it is not with the velocity (v) ?
Free body diagram
G ma
3 m
R
1.8 m
3m
W
R
1.8m
В
-2.4 m
N.
4m
N
15 m
15m.
Transcribed Image Text:Two inquiry I got ... 1) why tangential acceleration 1.2 m/s^2 ??? ( if given rate increasing a that means that is tangential acceleration ??? ) A particle moves in a circular path of 0.4 m radius. Calculate the magnitude of the acceleration of the particle a. (a) If its speed is constant at 0.6 ms-1. (b)lf its speed is 0.6ms1 but is increasing at the rate of 1.2 ms1 each second. why v2 an (i) (ii) a =1.2 m/s² an 0.62 0.62 0.4 0.4 = 0.9 m/s² = 0.9 m/s? 2) for this Jet why ma is drawn to be right (directed why it is not with the velocity (v) ? Free body diagram G ma 3 m R 1.8 m 3m W R 1.8m В -2.4 m N. 4m N 15 m 15m.
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