AP Physics 1· difficulty 2/5
If a meteor struck Earth tangentially against its rotation and embedded, Earth's day length would
Decrease (faster spin)
Increase slightly (slower spin)
Reverse direction
Remain unchanged
Explanation
The impact reduces Earth's angular momentum. Constant approximate ⇒ smaller ⇒ longer day.
Want 10 more like this — adaptive to your weak spots?
A person stands at the rim of a freely rotating merry-go-round (no friction in axle). They walk <strongtoward the center</strong. The merry-go-round's angular s…
chevron_rightA bullet of mass m moving horizontally with speed v embeds in the bottom of a uniform rod (mass M, length L) hinged at its top. Just after embedding, what is th…
chevron_rightAngular momentum of a system is conserved when…
chevron_right