Suppose a ball of putty moving horizontally with 1 kg·m/s of momentum collides with and sticks to an identical ball of putty moving vertically with 1 kg·m/s of momentum. what is the magnitude of their combined momentum?

Explanation:

Given that

For the first ball ,linear momentum P₁ = 1 kg.m/s (Horizontal)

For the second ball ,linear momentum P₂ = 1 kg.m/s ( vertically)

Lets take balls are moving in the x-y plane

As we know that linear momentum is a vector quantity

P₁ = 1  i kg.m/s

P₂ = 1 j kg.m/s

There combine linear momentum

P= P₁ + P₂

P = 1  i  + 1 j kg.m/s

The magnitude of the linear momentum P

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