Ann and Carol each lift the timber with a force of 80 kg/m/s2. If they lift the timber a distance of 1.25 meters, how much work is each woman doing?

Question 1 options:

64.00 J


78.75 J


81.25 J


100.00 J

Respuesta :

I believe it is C 81.25 J 

Answer : The correct answer is 100.00 J

Given : Force = 80 [tex] \frac{Kg m}{s^2} [/tex] Distance = 1.25 m Work = ?

Work , force and distance can be related by following formula :

Work (W) = Force (F) x distance (d)

Unit used for W = Joule (J)

Force = [tex] \frac{Kg m}{s^2} [/tex] or Newton (N) Distance = meters (m)

Plugging values in formula :

W = 80 [tex] \frac{Kg m}{s^2} [/tex] * 1.25 m

W = 100.00 [tex] \frac{Kg m^2}{s^2} [/tex] = 100.00 J