When a body moves in a circle of radius r with linear speed V its centripetal force is_______________?

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hen a body moves in a circle, the angle between its linear velocity and angular velocity is always_______________?

WA. 180° B. 0° C. 90° D. 45°...

The angular speed for daily rotation of the earth in rad S-1 is______________?

A. 7.3 x 10 radians/second B. 7.3 x 5 radians/second C. 3.7 x 10 7.3 x 5 radians/second D. 7.3 x 10-5 radians/second...

When a wheel 1 m in diameter makes 30 rev min the linear speed of the point on its rim in ms-1 is_______________?

A. 2π B. π/2 C. π D. 20π...

Who discovered the inverse square law for gravity ?

A. Einstein B. Galileo C. Newtons D. Plank...

The planet nearest to the earth is______________?

A. Venus B. Mercury C. Uranus D. Sun...