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Sahay Sir > Question Answers > NCERT Exemplar Class 11 > Physics > Chapter 3 - Motion in a Plane > (a) Earth can be thought of as a sphere of radius 6400 km. Any object (or a person) is performing circular motion around the axis of the earth due to the earth rotation (period 1 day). What is the acceleration of object on the surface of the earth (at equator) towards its centre? What is it at latitude theta ? How does these accelerations compare with g = 9.8 m/s^2?

(a) Earth can be thought of as a sphere of radius 6400 km. Any object (or a person) is performing circular motion around the axis of the earth due to the earth rotation (period 1 day). What is the acceleration of object on the surface of the earth (at equator) towards its centre? What is it at latitude theta ? How does these accelerations compare with g = 9.8 m/s^2?

The range of a projectile fired at an angle of 15^∘ is 50 m. If it is fired with the same speed at an angle of 45T∘ its range will be