CDF kinematics (73-83)

A body starting from rest, is subjected to a uniform acceleration 'a', then distance travelled in nth second is s_nth = ________

• a/2 (2n-1)

• u + a/2 (2n-1)

• ut + 1/2 at²

• none of the above

The motion of a body falling towards the Earth from a small altitude (h<<<r), purely under the force of gravity is called ________

• rest

• high speed moving

• inclined fall

• free fall

The uniform acceleration of a freely falling body towards the centre of earth due to earth's gravitational force is called __________

• acceleration due to gravity

• free fall

• vector quantity

• magnetic force

Acceleration due to gravity has maximum value at the _____ of the Earth.

• equator

• poles

• longitude

• lattitude

At poles, acceleration due to gravity is ___________

• 9.8 m/s²

• 9.78 m/s²

• 10 m/s²

• none of the above

Acceleration due to gravity has minimum value at the ______ of the Earth.

• poles

• equator

• middle

• anywhere

At equator, acceleration due to gravity is _____________

• 9.8 m/s²

• 9.78 m/s²

• 980 m/s²

• 10 m/s²

Acceleration due to gravity is a _______ quantity

• vector

• scalar

• major

The force with which the earth pulls the object towards it is called the _____________

• Gravitational force of the earth or gravity of the earth

• magnetic force

• acceleration due to gravity

• law of attraction

The magnitude of 'g' is _______. (S.I. unit)

• 9.8m/s²

• 10 m/s²

• 980 cm/s²