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A force vector applied on a mass is repr...

A force vector applied on a mass is represented as `F = 6i - 8j + 10k` and acceleration with 1 `m//s^(2)`. What will be the mass of the body ?

A

`10sqrt(2)` kg

B

`2sqrt(10)` kg

C

10 kg

D

20 kg

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The correct Answer is:
To find the mass of the body given the force vector and acceleration, we can follow these steps: ### Step 1: Identify the given values - The force vector \( F \) is given as: \[ F = 6\hat{i} - 8\hat{j} + 10\hat{k} \] - The acceleration \( a \) is given as: \[ a = 1 \, \text{m/s}^2 \] ### Step 2: Calculate the magnitude of the force vector To find the magnitude of the force vector \( F \), we use the formula for the magnitude of a vector: \[ |F| = \sqrt{(F_x)^2 + (F_y)^2 + (F_z)^2} \] Substituting the components of \( F \): \[ |F| = \sqrt{(6)^2 + (-8)^2 + (10)^2} \] Calculating each term: \[ |F| = \sqrt{36 + 64 + 100} \] \[ |F| = \sqrt{200} \] \[ |F| = 10\sqrt{2} \, \text{N} \] ### Step 3: Apply Newton's Second Law According to Newton's second law, the relationship between force, mass, and acceleration is given by: \[ F = m \cdot a \] Where: - \( F \) is the force, - \( m \) is the mass, - \( a \) is the acceleration. ### Step 4: Solve for mass Rearranging the formula to find mass: \[ m = \frac{F}{a} \] Substituting the values we have: \[ m = \frac{10\sqrt{2}}{1} \] \[ m = 10\sqrt{2} \, \text{kg} \] ### Conclusion The mass of the body is: \[ m = 10\sqrt{2} \, \text{kg} \] ### Final Answer Thus, the correct option is: **Option 1: \( 10\sqrt{2} \, \text{kg} \)** ---

To find the mass of the body given the force vector and acceleration, we can follow these steps: ### Step 1: Identify the given values - The force vector \( F \) is given as: \[ F = 6\hat{i} - 8\hat{j} + 10\hat{k} \] - The acceleration \( a \) is given as: ...
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