18 km h^-1 is equal to —

1. 10 m s^-1
2. 5 m s^-1
3. 18 m s^-1
4. 1.8 m s^-1

The value of g does not depend on the:

1. Height of the body
2. Mass of the body
3. Shape of the body
4. All of these

The value of g is maximum at:

1. Tropic of capricorn
2. Equator
3. Tropic of cancer
4. Poles

A body when projected up with an initial velocity u goes to a maximum height h in time t and then comes back at the point of projection. The correct statement is —

1. The average velocity is 2h/t
2. The acceleration is zero
3. The final velocity on reaching the point of projection is 2u
4. The displacement is zero