...stationary, but is now? moving, it must have accelerated. While the bar is accelerating upwards, how does the force by the weight lifter on the barbell compare to the force of the barbell on the weight lifter?
equal but opposite??? if they are how can the barbell accelerate (don't equal forces add to zero?)
would anything change if the weight lifter were lowering the barbell, causing it to accelerate downwards?
Pls help ! Thanx... Physics is complicated
equal but opposite??? if they are how can the barbell accelerate (don't equal forces add to zero?)
would anything change if the weight lifter were lowering the barbell, causing it to accelerate downwards?
Pls help ! Thanx... Physics is complicated