Which man exerts greater pressure against the floor?

1) a 150-kg man lying on the floor
2) a 150-kg man standing on the floor
3) Both men exert the same pressure.

The reason is that
4) both men have the same weight.
5) the upright man's weight is distributed over a smaller area.
6) the man lying down has his weight equally distributed.


Answer: 2, 5

Physics & Space Science

You might also like to view...

Newton's Second Law in 1 Dimension: A 958-N rocket is coming in for a vertical landing. It starts with a downward speed of 25 m/s and must reduce its speed to 0 m/s in 8.0 s for the final landing.(a) During this landing maneuver, what must be the thrust due to the rocket's engines?(b) What must be the direction of the engine thrust force?

What will be an ideal response?

Physics & Space Science

A crate is being pushed with a constant horizontal force, F. Four forces can be identified: 1) F, 2) the gravitational force, 3) the normal force, and 4) the frictional force. Which forces do NO work on the crate?

A. 1 & 4 B. 2 & 3 C. 2 & 3 & 4 D. 1 & 2 & 3

Physics & Space Science

Irregular galaxies, although small, have large H II regions and much on-going star formation for their size

Indicate whether the statement is true or false

Physics & Space Science

Galaxies seem to be made mostly of dark matter. One type of evidence for this comes from observations of the

A) energy emitted by distant quasars, which is far larger than can be explained by the visible matter in the quasars. B) gravitational bending of light from distant galaxies as it passes other galaxies on its way to Earth. C) redshift in the light from the earliest galaxies in the universe. D) force of gravity acting on laboratory objects. E) redshift in the light from the explosions of distant supernovas.

Physics & Space Science