Asked by anoynomous

a weightlifter raises a 200-kg barbell with an acceleration of 3 m/s. How much force does the weightlifter use to raise the barb?

Answers

Answered by MathMate
To maintain the weight at the same place, the force required is mg.
To accelerate upwards at acceleration a=3m/s², he/she must apply an additional force of ma.
So the total force is
m(g+a) N
where
m=mass of weight
g=acceleration due to gravity
a=acceleration upwards.
Answered by Anonymous
400kg
Answered by tyree
A weightlifter raises a 200-kg barbell through a height of 2 m in 2.2 s. The average power he develops during the lift is
Answered by Idk
40000 kg
Answered by t
400
Answered by Audi
IT would take the force of 400 N
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