Note #1: Momentum

This problem is not original and is not intended for public solving

If the surface upon which the block rests is frictionless, find the:

a) impulse b) Δp (change in momentum) c) final momentum d) final velocity

Answers

a) $F \times Δt = 200 \times 5 = 1000 Ns$

b) $Δp = FΔt = 1000 \text{kg m/s}$ (Δp = impulse)

c) $Δp = 1000$

initial momentum $= mv = 50 \times 10 = 500 \text{kg m/s}$

final momentum = $1000 + 500 = 1500 \text{kg m/s}$

d) $p = mv$

$1500 = 50 \times v$

$v = 30 \text{m/s}$

Easy Math Editor

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Comments

https://www.youtube.com/watch?v=NIVNfI0RN2k ( a yt link for personal reference later :P)

Shane Sarosh - 1 month, 1 week ago

Hey could you make that link a proper link 🖇️, It is quite hard for users to go on that video. :D

SRIJAN Singh - 3 weeks, 6 days ago

Math	Appears as
Remember to wrap math in `\(` ... `\)` or `\[` ... `\]` to ensure proper formatting.
`2 \times 3`	$2 \times 3$
`2^{34}`	$2^{34}$
`a_{i-1}`	$a_{i-1}$
`\frac{2}{3}`	$\frac{2}{3}$
`\sqrt{2}`	$\sqrt{2}$
`\sum_{i=1}^3`	$\sum_{i=1}^3$
`\sin \theta`	$\sin \theta$
`\boxed{123}`	$\boxed{123}$