Uniform Circular motion

“G” is called:

• Gravitational acceleration

• Gravitational force

• Gravitational constant

• All of these

“g” is called:

• Gravitational acceleration

• Gravitational force

• Gravitational constant

• All of these

The value of “G” is:

• 6.67×10 ^-6 Nm²/kg²

• 6.67×10 ^-9 Nm²/kg²

• 6.67×10 ^-10 Nm²/kg²

• 6.67×10 ^-11 Nm²/kg²

The gravitational force between two bodies depends upon the product of their masses in addition to:

• Square of the distance between them

• Shape of bodies

• Medium between them

• Sum of masses

The angular displacement is measured in:

• Degrees

• Radian

• Both Degrees and Radians

• None of these

1 radian =

• 0.573^o

• 5.73^o

• 57.3^o

• 573.0⁰

For an object moving in circular path, the angle between velocity and acceleration is:

• 0^o

• 45^o

• 90^o

• 180^o

For an object moving in a straight line with increase in velocity, the angle between velocity and acceleration is:

• 0^o

• 45^o

• 90^o

• 180^o

For an object moving in a straight line with decrease in velocity, the angle between velocity and acceleration is:

• 0^o

• 45^o

• 90^o

• 180^o

If the uniform speed of a body moving in a circle with a uniform speed is doubled, its centripetal acceleration becomes:

• Twice

• Three times

• Four times

• half