Question

if the angular speed of earth becomes 17times its present value what will be the 1.effect on a body on the equator of earth? it will be
A. Heavier than present value
B.lighter than present value
C.weightless
And also what is the reason?

2.a girl sitting on a swing stands up. What will be the effect on the periodic time of the swing?

Answer 1

Decreases since length Decreases