Posted by **monica** on Wednesday, February 2, 2011 at 11:56pm.

A student is about to do a push-up. Her

center of gravity lies directly above P on the

ﬂoor, which is 1.1 m from her feet and 0.4 m

from her hands.

If her mass is 55 kg, what is the force exerted by the ﬂoor on her hands? The acceleration of gravity is 9.81 m/s

2

.

## Answer this Question

## Related Questions

- Physics - A student is about to do a push-up. Her center of gravity lies ...
- physics - Once a 28 kg crate is in motion on a horizontal ﬂoor, a ...
- physics - Once a 15 kg crate is in motion on a horizontal ﬂoor, a ...
- Physics - Once a 15 kg crate is in motion on a horizontal ﬂoor, a ...
- Physics - A student moves a box of books down the hall by pulling on a rope ...
- Phyisics - Once a 26 kg crate is in motion on a horizontal ﬂoor, a ...
- Physics - Tom the cat is chasing Jerry the mouse across a table surface 2.4 m o...
- physics - Starting from rest, a(n)9 kg block slides 9.7 m down a frictionless ...
- physics - Tom the cat is chasing Jerry the mouse across a table surface 1.8 m o...
- physics - 011 (part 1 of 5) 10.0 points Two objects are connected by a string of...

More Related Questions