Work Done in Lifting a Barbell
Calculating Work Done in Lifting a Barbell
Work done on the barbell:
To calculate the work done when a weightlifter lifts a barbell, we need to know the force applied and the distance it is lifted. In this case, a very strong athlete can lift a 350 N barbell a distance of 2 meters from the ground.
Formula: W = F × d
Where:
W = Work (Joule or Nm)
F = Force (Newton)
d = Distance (meters)
Given:
Force (F) = 350 N
Distance (d) = 2 meters
Calculation:
W = F × d
W = 350 N x 2 m
W = 700 Joule
Therefore, the work done on the barbell by the weightlifter is 700 Joules.