Here we can use Newton's II law to find the acceleration of the car
here we know that
as we know that two forces are equal in magnitude but opposite in direction so in order to find net force we need to subtract it
now from above equation
so here option A is correct
The resultant force will be equal to difference of her downward force, her weight, and the upward force, the air resistance.
Fnet = 657 - 51.1 x 9.81
= 149.7 N
F = ma
a = F / m
a = 149.7/51.1
a = 2.93 m/s²
Answer:44.58 J
Explanation:
mass of block 
Force magnitude=3 N
Initial velocity =
Final velocity=
Initial Kinetic Energy=
=
Final Kinetic Energy=
=
Work Done =Final -Initial Kinetic energy=51.2-6.612=44.58 J
One way you could think about it is that you used science of electronics to develop the technology of a computer
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