Question

when a bullet is fired from a gun it get a momentum of 4000 kg metre per second if the velocity of the bullet is hundred metre per second what will be its mass​

Answer 1

Given :

Momentum of the bullet = 4000kg m/s

Velocity of the bullet = 100m/s

To find :

The mass of the bullet

Solution :

» Momentum is product of mass of a body and it's velocity.

• Momentum is a vector quantity having both magnitude and direction.
• SI unit of momentum is kg m/s
• CGS unit of momentum is g cm/s
• Dimensional formula of momentum is [M¹L¹T¯¹]

we know that,

Momentum (p) = mass(m) × velocity(v)

by substituting all the given values in the formula,

➝ p = mv

➝ 4000 = m(100)

➝ m = 4000/100

➝ m = 40 kg$.$

Thus, the mass of the bullet is 40kg.

Answer 2

Answer:

Mass = 40kg

Explanation:

Question:

When a bullet is fired from a gun it get a momentum of 4000 kg m/s. If the velocity of the bullet is 100 m/s, what will be its mass?

Given:

• Momentum = 4000kg m/s

• Velocity of the bullet = 100m/s

To find:

• Mass

Formula used here:

Momentum = Mass $\times$ Velocity

p = mv

Solution:

Apply the formula:

p = mv

4000 = 100 $\times$ m

m = 4000/100

m = 40kg

Final answer:

m = 40kg