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Homework Assignment 1
1.
An object whose mass is 10 kg weighs 95 N. Determine:
a.
The local acceleration of gravity, in m/s
2
.
b.
The mass, in kg, and the weight, in N, of the object at a location where
g
=
9.81 m/s
2
.
2.
An object whose mass is 10 lb
m
weighs 9.6 lb
f
. Determine:
a.
The local acceleration of gravity, in ft/s
2
.
b.
The mass, in lb
m
, and the weight, in lb
f
, of the object at a location where
g
=
32.2 ft/s
2
.
3.
A gas occupying a volume of 25 ft
3
weighs 3.5 lb
f
on the moon, where the acceleration
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Unformatted text preview: of gravity is 5.47 ft/s 2 . Determine its weight, in lb f , and density, in lb m /ft 3 , on Mars, where g = 12.86 ft/s 2 . 4. Consider a lawnmower being driven by a onecylinder gasoline engine. For this system: a. What is a good choice for the system boundary? b. Should this system be analyzed as a closed system or a control volume? c. Would this change if the lawnmower was battery driven? Due Friday June 4, 2010 10:00AM...
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This note was uploaded on 06/28/2010 for the course MEEN 315 taught by Professor Ramussen during the Summer '07 term at Texas A&M.
 Summer '07
 RAMUSSEN

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