Calculate the acceleration of a car that is travelling at a constant speed of 100 km per hour on a straight road. The radius R of the Earth is 6370 km. Why do we not feel this acceleration?

Question

Calculate the acceleration of a car that is travelling at a constant speed of 100 km per hour on a straight road. The radius R of the Earth is 6370 km. Why do we not feel this        acceleration?

bobpursley · Answer

centripetal acceleration due to Earth rotation. angular rotation=w=2PI/(24*3600) rad/sec acceleration=w^2*r=(2PI/(24*3600))^2*6.37E6 m/s^2= .034 m/s^2 How does that compare to 9.8m/s^2

joshua · Answer

2.314814815E-05