Answer:
u = 3.8 cm
Step-by-step explanation:
Since these triangles are similar, we can use a proportion to solve:
Cross multiply:
8u = 30
Divide both sides by 8:
3.75 cm
Round to nearest tenth:
3.8 cm
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- Heather
Step-by-step explanation:
Given that,
Radius of circle, r = 38 cm = 0.38 m
It rotates form 10 degrees to 100 degrees in 11 seconds i.e.
Let is the angular velocity of the particle such that,
We need to find the instantaneous velocity of the particle. The relation between the angular velocity and the linear velocity is given by :
v = 0.053 m/s
So, the instantaneous velocity of the particle is 0.053 m/s. Hence, this is the required solution.