Question

Suppose a meteorite struck the earth at the equator with a speed as shown in fig. 37 and remained stuck. By what factor would this affect the rotational frequency of the earth

Answer 1

Angular momentum is conserved 

Earth's ang mom = w. 2/5 M R^2 = 2/5 . 6 . 10^24 . (6.37 . 10^6)^2 . 2π / 8.64 . 10^4 = 7.08 . 10^33 

Meteor's ang mom = 6.0 . 10^10 . 2.1 . 10^4 . 6.37 . 10^6 sin45 = 5.68 . 10^21 kgm^2/s 

∆w / w is equivalent to 5.68 . 10^21 / 7.08 . 10^33 = 8.02 . 10^–13

pls mark me brainliest.......