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A particle of mass m= 5g is executing si...

A particle of mass m= 5g is executing simple harmonic motion with an amplitude `0.3`m and time period `pi//5` second. The maximum value of force acting on the particle is

A

5 N

B

4 N

C

`0.5` N

D

`0.15`N

Text Solution

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The correct Answer is:
To find the maximum force acting on a particle executing simple harmonic motion (SHM), we can follow these steps: ### Step 1: Convert mass to kilograms The mass \( m \) is given as 5 grams. To convert this to kilograms: \[ m = \frac{5 \text{ g}}{1000} = 0.005 \text{ kg} \] ### Step 2: Identify the amplitude and time period The amplitude \( A \) is given as 0.3 m, and the time period \( T \) is given as \( \frac{\pi}{5} \) seconds. ### Step 3: Calculate angular frequency \( \omega \) The angular frequency \( \omega \) is calculated using the formula: \[ \omega = \frac{2\pi}{T} \] Substituting the value of \( T \): \[ \omega = \frac{2\pi}{\frac{\pi}{5}} = 2 \cdot 5 = 10 \text{ rad/s} \] ### Step 4: Calculate maximum acceleration \( a_{\text{max}} \) The maximum acceleration in SHM is given by: \[ a_{\text{max}} = \omega^2 A \] Substituting the values of \( \omega \) and \( A \): \[ a_{\text{max}} = (10)^2 \cdot 0.3 = 100 \cdot 0.3 = 30 \text{ m/s}^2 \] ### Step 5: Calculate maximum force \( F_{\text{max}} \) The maximum force acting on the particle can be calculated using Newton's second law: \[ F_{\text{max}} = m \cdot a_{\text{max}} \] Substituting the values of \( m \) and \( a_{\text{max}} \): \[ F_{\text{max}} = 0.005 \text{ kg} \cdot 30 \text{ m/s}^2 = 0.15 \text{ N} \] ### Final Answer The maximum value of the force acting on the particle is: \[ \boxed{0.15 \text{ N}} \] ---

To find the maximum force acting on a particle executing simple harmonic motion (SHM), we can follow these steps: ### Step 1: Convert mass to kilograms The mass \( m \) is given as 5 grams. To convert this to kilograms: \[ m = \frac{5 \text{ g}}{1000} = 0.005 \text{ kg} \] ...
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Knowledge Check

  • A particle of mass m=5g is executing simple harmonic motion with an amplitude 0.3 m and time period (pi)/(2) sec. The maximum value of force acting on the particle is

    A
    5 N
    B
    4 N
    C
    0.5 N
    D
    `0.15 ` N
  • A particle of mass 10grams is executing simple harmonic motion with an amplitude of 0.5 m and periodic time of ) (pi //5) seconds . The maximum value of the force acting on the particle

    A
    25 N
    B
    5 N
    C
    2.5 N
    D
    0.5 N
  • The equation of a simple harmonic motion (amplitude 5 cm and time period 0.5 second) is

    A
    y = 0.5 sin ` 2 pi t`,
    B
    `y = 0.5 sin (2 at)/(5)`
    C
    `y = 5 sin 4 pi t`
    D
    `y = 5 sin pi t`
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