If we ignore air resistance, as we always do,
there is no horizontal acceleration.
Gravity acts only in the vertical direction, and
no other forces act on the ball after the punt.
Answer:
A 1.56 see below
Explanation:
I will assume the 45 degree force is upward
vertical component = 600 sin 45 = 424.26 N
added to the other vertical force will total 824.26 N
F = ma
824.26 = 100 * a shows a = 8.24 m/s upward
Now we have to assume the mass is ALSO acted on by gravity and this value is given as 9.8 ( so downward is positive)
9.81 - 8.24 = 1.56 m/s^2
The momentum is 1.10×104×25=3850kgm/s
Answer:
Explanation:
Coordinate system is one that describe the location of an object in a given plane. It implies the use of axes (coordinates) and points.
Given that the man in the question walks 400 m due north of east. The cardinal points can be used in this case, with the north and east cardinals as the required axis.
scale =
=
=
scale = 1:40
This is a reduced scale which implies that 1 cm on the drawing is equal to 40 m on the original length.
The man's direction is north of east.
The graphical drawing of the vector is herewith attached to this answer.
Answer:
d1 = 9*d2 The second displacement is 9 times shorter.
Explanation:
We know that: where Vo = 0 for both trials
During the first trial:
Since t1 = 6s:
During the second trial:
Since t2 = 2s:
From these two equations we get:
d1 = 18/2*d2 => d1 = 9*d2