When the net force acts at right angles to an object’s motion, what does it do to the object’s motion?
1 answer:
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The kinetic energy of an object is given by:
where
K is the kinetic energy
m is the mass of the object
v is its velocity.
The comet in our problem has a mass of
and a velocity of 
, so its kinetic energy is:
where
K is the kinetic energy
m is the mass of the object
v is its velocity.
The comet in our problem has a mass of
Solution :
c). force applied by Abe
force applied by Barry
force applied by Eric
Resultant force
in the vector form can be written as :
in the vector form can be written as :
The resultant,
= 84.853 N
d). As the three forces are in equilibrium, therefore,
e). The direction of the force exerted by Eric is exactly opposite to the direction of the resultant force.
The direction of the resultant force is :
= 45° north east
The direction of the force E is 45° west or 45° south west.
