Question

A body of mass 40 kg has a momentum of 200 kg m/s, then the velocity of the body is.​

Answer 1

➲ ɢɪᴠᴇɴ :-

• Mass (m) = 40 kg
• Momentum (p) = 200kg.m/s

➲ ᴛᴏ ғɪɴᴅ :-

• Velocity (v)

➲ sᴏʟᴜᴛɪᴏɴ :-

We know that,

➦ Momentum (p) = Mass(m) × Velocity(v)

➦ p = mv

Put the above given values in it, we get,

➨ 200 = 40 × v

➨ v = 200/40

➨ v = 5 m/s

Hence,

• Velocity (v) = 5 m/s

Answer 2

Answer :

Given -

• Mass = 40 kg
• Momentum = 200 kg m/s

To Find -

• Velocity of the body ?

Solution -

We know that, Momentum = Mass*Velocity

Using this, let's Find the velocity.

⇒ 200 = 40*Velocity

⇒ Velocity = 200/40

⇒ Velocity = 20/4

⇒ Velocity = 5 m/s

Hence, the velocity of the body is 5 m/s.

Momentum :

• It is a vector quantity.
• Momentum is the product of mass and velocity.
• The SI unit of Momentum is kg m/s.