what is the net worth of an object that is pulled with 80 Newton to the right and Newton to the left what is the net force on a back pulled by down by gravity with 80 Newton and pulled upward by a rope with 80 Newton
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Note: To simplify calculations, an approximated value of g is often used - 10 m/s/s. Answers obtained using this approximation are shown in parenthesis.
Fnorm = 80 N; m = 8.16 kg; Fnet = 40 N, right; a = 4.9 m/s/s, right
( Fnorm = 80 N; m = 8 kg; Fnet = 40 N, right; a = 5 m/s/s, right )
Since there is no vertical acceleration, normal force = gravity force.
The mass can be found using the equation Fgrav = m • g.
The Fnet is the vector sum of all the forces: 80 N, up plus 80 N, down equals 0 N. And 50 N, right plus 10 N, left = 40 N, right.
Finally, a = Fnet / m = (40 N) / (8.16 kg) = 4.9 m/s/s.
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