Question

A Venice of mass 400kg travels at a velocity of 100km/h find its momentum​

Answer 1

Given :

• Mass of a vehicle, m = 400 kg
• Velocity, v = 100 km/h

To find :

• Momentum, p

According to the question,

We know,

Momentum of a body can be defined as the product of its mass and velocity.

We can also write it as,

• p = m × v

Note : We need to convert 100 km/h into m/s. So, the velocity will be 27.778 m/s.

Now,

➝ p = m × v

➝ p = 400 × 27.778

➝ p = 11,111.2 kg m/s

• So, the momentum of the vehicle is 11,111.2 kg m/s.

___________________

Answer 2

Given

• Mass = 400 kg
• Velocity = 100 km/h

To Find

• Momentum

Solution

We know that

$\rm \longrightarrow p=mv$

Here

• p = Momentum
• m = Mass
• v = Velocity

Units

• p = kg m/s
• m = kg
• v = m/s

According to the question

We are asked to find the momentum

Therefore

We must find "p"

Given that

• Mass = 400 kg
• Velocity = 100 km/h

Hence

• m = 400 kg
• v = 100 km/h = 27.78 m/s

Substituting the values

We get

$\rm \longrightarrow p=400 \times 27.78 \ kg \ m/s$

Therefore

$\rm \longrightarrow p=11112 \ kg \ m/s$

Hence

Momentum = 11112 kg m/s