Suppose a drinking straw is in a glass of water. Someone blows air across the top of the straw. The water level in the straw ___
2 answers:
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Answer:
19.74 N
Explanation:
mass of ball (m) = 0.25 kg
radius (r) = 0.5 m
time (t) = 2 revolutions per seconds = 1/2 = 0.5 second per revolution
find the tension in the string
tension (T) =
- where velocity (v) =
tension now becomes (T) =
tension (T) =
- now substituting the values of mass (m), time (t) and radius (r) into the equation above we have
tension (T) =
tension (T) = =
= 19.74 N
Answer:
The value of tangential acceleration 40
The value of radial acceleration
Explanation:
Angular acceleration = 50
Radius of the disk = 0.8 m
Angular velocity = 10
We know that tangential acceleration is given by the formula
Where r = radius of the disk
= angular acceleration
⇒ 0.8 × 50
⇒ 40
This is the value of tangential acceleration.
Radial acceleration is given by
Where V = velocity of the disk = r
⇒ V = 0.8 × 10
⇒ V = 8
Radial acceleration
This is the value of radial acceleration.