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Hello again forum!

I need a hint or a straight answer as to what I am doing wrong in solving this momentum problem...

A 5.0 kg ice block is sliding along a smooth floor at 1.0 m/s west when a 0.20 N force directed east acts on it for 4.0 s. What is the magnitude of the block’s final momentum?

Please see attached document.

Please see attached document. I first solved for a change in momentum, then a final velocity and then the regular momentum. The actual answer is supposed to be 4.2.

What did I overlook this time?

Thank you for reading and your seemingly endless patience :)

I need a hint or a straight answer as to what I am doing wrong in solving this momentum problem...

## Homework Statement

A 5.0 kg ice block is sliding along a smooth floor at 1.0 m/s west when a 0.20 N force directed east acts on it for 4.0 s. What is the magnitude of the block’s final momentum?

## Homework Equations

Please see attached document.

## The Attempt at a Solution

Please see attached document. I first solved for a change in momentum, then a final velocity and then the regular momentum. The actual answer is supposed to be 4.2.

What did I overlook this time?

Thank you for reading and your seemingly endless patience :)