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Transcribed Image Text:Particle A and B are traveling around a circular track in clockwise direction at a speed
of 8 m/s at the instant shown. If the speed of B is increasing by (a)B = 1 m/s² ,
and at the same instant A has an increase in speed of (a¿)A = 0.8 t m/s², determine
how long it takes for a collision to occur. How many full circles of turn has each
particle completed before colliding? What is the magnitude of the acceleration of
each particle just before the collision occurs?
0 = 120°
r= 5 m
らや
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Step 1
Let the initial position of particle B be the x axis, the two particles then collide at the instant when clockwise angles they make with x-axis are equal.
The angular position is given by,
Where is the initial angle and is the angular velocity.
The angular velocity of a particle moving on a circle of radius r is given by,
Given the acceleration and initial velocity the final velocity can be found by integrating the acceleration equation as,
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