Question

.A bullet of 25 g is when fired from a piston gets a momentum of 50 kg m/s. Calculate the velocity of bullet. pls ans it my answer is comming 0.0005m/s

Answer 1

Required Answer :

• Velocity of the bullet = 2000 m/s

Explanation :

Given :

• Mass of bullet = 25 g
• Momentum = 50 kgm/s

To find :

• The velocity of the bullet

Solution :

Here, we are given the mass and momentum of the bullet and we need to calculate the velocity of the bullet. To calculate the velocity we will use the formula of momentum. Before calculating the velocity, we will convert the mass of the bullet from g into kg.

As we know,

1 kg = 1000 g

To convert the mass of the bullet into kg, divide it by 1000.

→ Mass of the bullet = 25/1000

→ Mass of the bullet = 0.025

Mass of the bullet = 0.025 kg

Formula of momentum :

• p = mv

where,

• p denotes the momentum
• m denotes the mass
• v denotes the velocity

Substituting the given values :

→ 50 = 0.025 × v

→ 50/0.025 = v

→ 2000 = v

Therefore, the velocity of the bullet = 2000 m/s

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Knowledge Bytes :

• Momentum is the product of mass and velocity.

• It's S.I. unit is kg m/s

• Velocity is the distance traveled by a body in a particular direction in one second.

• It's S.I. unit is m/s.