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Calculate the velocity of a body having a mass of 9 kg and linear momentum of 63 kg m/s.
  • a)
    6 m/s
  • b)
    7 m/s
  • c)
    8 m/s
  • d)
    10 m/s
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Calculate the velocity of a body having a mass of 9 kg and linear mome...
To calculate the velocity of a body, we can use the equation:

linear momentum (p) = mass (m) × velocity (v)

Given that the mass of the body is 9 kg and the linear momentum is 63 kg m/s, we can rearrange the equation to solve for velocity:

v = p / m

Now, let's substitute the given values into the equation:

v = 63 kg m/s / 9 kg

Simplifying the equation:

v = 7 m/s

Therefore, the velocity of the body is 7 m/s.

Explanation:

Given:
- Mass of the body (m) = 9 kg
- Linear momentum of the body (p) = 63 kg m/s

We need to calculate the velocity (v) of the body.

Using the equation for linear momentum:
p = m × v

Rearranging the equation to solve for velocity:
v = p / m

Substituting the given values into the equation:
v = 63 kg m/s / 9 kg

Simplifying the equation:
v = 7 m/s

Hence, the velocity of the body is 7 m/s.
Free Test
Community Answer
Calculate the velocity of a body having a mass of 9 kg and linear mome...
Linear momentum:
  • It is the product of the mass and velocity of an object.
  • Like velocity, linear momentum is a vector quantity possessing a direction as well as magnitude.
P = mv
where P = momentum and v = velovity.
Calculation:
Given:
Mass = 9 kg, P = 63 kg-m/sec
P = mv
63 = 9 × v
v = 7 m/s
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