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Standard XII

Physics

Centripetal Acceleration

A wheel start...

Question

A wheel starts rotating at $10 r a d / s e c$ and attains the angular velocity of $100 r a d / s e c$ in $15$ seconds. What is the angular acceleration in $r a d / s e c^{2}$ ?

10

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110 / 15

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100 / 15

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6

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Solution

The correct option is B $6$
The angular acceleration is given as
$α = \frac{Δ ω}{Δ t}$
By substituting the given values in the above equation we get
$α = \frac{100 - 10}{15}$
Hence the angular acceleration is $6$

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A wheel starts rotating at 10rad/sec and attains the angular velocity of 100rad/sec in 15 seconds. What is the angular acceleration in rad/sec2 ?

The correct option is B 6The angular acceleration is given as α=ΔωΔtBy substituting the given values in the above equation we getα=100−1015Hence the angular acceleration is6

A wheel starts rotating at $10 r a d / s e c$ and attains the angular velocity of $100 r a d / s e c$ in $15$ seconds. What is the angular acceleration in $r a d / s e c^{2}$ ?

The correct option is B $6$
The angular acceleration is given as
$α = \frac{Δ ω}{Δ t}$
By substituting the given values in the above equation we get
$α = \frac{100 - 10}{15}$
Hence the angular acceleration is $6$