Motion of Freely Falling Body

Q. According to Archimedes' principle buoyant force is equal to ________ of the liquid displaced.

1. mass
2. density
3. volume
4. weight

Q. A ball at rest is dropped from the top of a mountain. What is the distance travelled by the ball in the first two seconds? ( Take acceleration due to gravity $g=9.8m{s}^{-2}$)

1. $20m$
2. $19.6m$
3. $39.2m$
4. $18.33m$

Q. According to Archimedes' principle buoyant force is equal to ________ of the liquid displaced.

1. mass
2. weight
3. volume
4. density

Q. The weight of an object on the moon is about _____ of its weight on the earth.

1. four times
2. six times
3. one-fourth
4. one-sixth