Which has more momentum, a #5kg# object moving at #8m/s# or a #12kg# object moving at #2m/s#?

1 Answer
Dec 26, 2015

This is only asking about one equation. This should take no more than 1 minute.

Momentum is just the quantity of motion for a moving object.

Hence you need mass and velocity.

#vecp = mvecv#
where #vecp# is momentum, #m# is mass in #"kg"#, and #vecv# is velocity in #"m/s"#.

So...

#vecp_1 = m_1vecv_1#
#vecp_2 = m_2vecv_2#

#vecp_1" ? "vecp_2#

#("5 kg")("8 m/s")" ? "("12 kg")("2 m/s")#

#"40 kg"cdot"m/s" > "24 kg"cdot"m/s"#

Hence

#color(blue)(vecp_1 > vecp_2)#