Asked by applebottom

A particle of mass 2.7kg has an initial velocity of 5i+5j m/s.
It is acted on by a force 2i-4.5j N for 2s.
What is its final velocity?
Answered by bobpursley
force*time=mass*change in velocity

change in velocity=(2i-4.5j)2.7/2

find that.
then, final velocity=initial velocity+change in velocty
Answered by applebottom
can u explain with steps, i don't understand.
Thanks
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