Views: 1196 Posts: 5 Started By: CeeGeek Last Poster: Guest Last Post Date: Apr 16, 2016
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April 4, 2016 ( Post 1 )

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April 6, 2016 ( Post 364 )


1,Moment of a force about a point is the product of
the force and its perpendicular distance from the
point to the line of action of the force. i.e
moment=force*time and its unit is Nm
(1bii)
-Sum of forces acting in one direction must equal
to the forces acting in another direction.
-The algebraic sum of moment acting about a
point must be equal to zero
(1i)
Centre of gravity =50.5
TABULATE
S/N|A(cm)| B(cm)
1 |10.0 | 51.90
2 |15.0 | 53.50
3 |20.0 | 53.80
4 |25.0 | 54.90
5 |30.0 | 55.80
(1xii)
-I avoided the effect of draught during the
experiment
-I avoided error due to parallax on the metre rule
-I balanced the metre rule horizontally on the knife
edge before taking my readings. call for all solution 0815289842



April 6, 2016 ( Post 365 )


physics practical answers
1i)
Centre of gravity =50.5
TABULATE
S/N-A(cm)-B(cm)
1-10.0-51.90
2-15.0-53.50
3-20.0-53.80
4-25.0-54.90
5-30.0-55.80
1xii)
-I avoided the effect of draught during
the experiment
-I avoided error due to parallax on the
metre rule
-I balanced the metre rule horizontally
on the knife edge before taking my
readings
1bi)
Moment of a force about a point is the
product of the force and its
perpendicular distance from the point
to the line of action of the force. i.e
moment=force*time and its unit is Nm
1bii)
-Sum of forces acting in one direction
must equal to the forces acting in
another direction.
-The algebric sum of moment acting
about a point must be equal to zero
2bi)Heat Capacity: is the amount of
heat required to change its
temperature by one degree, and
has units of energy per
degree.
1b i Moment of a force about a point
The moment of a force about a point O
is defined as the vector product (cross
product)
Mo= r × F
where r = xi + yj + zk is the radius
vector (position vector) drawn from O
to the point of
application A of the force F , and F =
Fx + Fy + Fz is the force vector acting
on A..



April 10, 2016 ( Post 413 )



April 11, 2016 ( Post 424 )



April 16, 2016 ( Post 463 )



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