0
What two types of force would a weight lifter use to lift barbells above his head?
Wiki User
∙ 10y ago
kinetic energy and net force
Wiki User
∙ 10y ago
dominga arias
Add your answer:
Earn +20 pts
How much work does the weight lifter do The weight lifter applies a force of 1300 N to a dumbbell does not move?
0 J
What are the forces acting on the weight lifter and the weight?
(using squats for the sake of explanation) The lifter exerts an action force on the weight, which is in the opposite direction to gravity. The lifters shoulders also experience the reaction force (from the weight - otherwise, the weight would pass through the lifter or vice versa). The feet of the lift also experience a reaction force, which, combined with the shoulder-reaction force, is equal to the action force (Newton's Third Law). The feet also experience friction on the floor surface in opposite directions (which cancel out, so the lifter is stationary on the ground) :)
What are the forces acting on a weight lifter and the weights?
(using squats for the sake of explanation) The lifter exerts an action force on the weight, which is in the opposite direction to gravity. The lifters shoulders also experience the reaction force (from the weight - otherwise, the weight would pass through the lifter or vice versa). The feet of the lift also experience a reaction force, which, combined with the shoulder-reaction force, is equal to the action force (Newton's Third Law). The feet also experience friction on the floor surface in opposite directions (which cancel out, so the lifter is stationary on the ground) :)
How much work is done by a weight lifter when he holds a weight of 80Kg on his shoulders for two minutes?
none. work is done when a force is applied thru a distance. holding something stationary does no work.
A weight lifter has lifted 150 kg to a height of 2 m. He now lowers it carefully to the floor in 5 seconds. How much power is used Remember the force of an object's weight mass and times gravity.?
588 W
How much work does the weight lifter do The weight lifter applies a force of 1300 N to a dumbbell does not move?
0 J
What are the forces acting on the weight lifter and the weight?
(using squats for the sake of explanation) The lifter exerts an action force on the weight, which is in the opposite direction to gravity. The lifters shoulders also experience the reaction force (from the weight - otherwise, the weight would pass through the lifter or vice versa). The feet of the lift also experience a reaction force, which, combined with the shoulder-reaction force, is equal to the action force (Newton's Third Law). The feet also experience friction on the floor surface in opposite directions (which cancel out, so the lifter is stationary on the ground) :)
What are the forces acting on a weight lifter and the weights?
(using squats for the sake of explanation) The lifter exerts an action force on the weight, which is in the opposite direction to gravity. The lifters shoulders also experience the reaction force (from the weight - otherwise, the weight would pass through the lifter or vice versa). The feet of the lift also experience a reaction force, which, combined with the shoulder-reaction force, is equal to the action force (Newton's Third Law). The feet also experience friction on the floor surface in opposite directions (which cancel out, so the lifter is stationary on the ground) :)
What are the forces acting on the weight lifter and the weights.?
(using squats for the sake of explanation) The lifter exerts an action force on the weight, which is in the opposite direction to gravity. The lifters shoulders also experience the reaction force (from the weight - otherwise, the weight would pass through the lifter or vice versa). The feet of the lift also experience a reaction force, which, combined with the shoulder-reaction force, is equal to the action force (Newton's Third Law). The feet also experience friction on the floor surface in opposite directions (which cancel out, so the lifter is stationary on the ground) :)
How much work is done by a weight lifter when he holds a weight of 80Kg on his shoulders for two minutes?
none. work is done when a force is applied thru a distance. holding something stationary does no work.
How much work is done by a weight lifter when he holds a weight of 80kgs on his shoulder for two minutes?
none. work is done when a force is applied thru a distance. holding something stationary does no work.
The weight lifter used a force of 980N to raise the barbell over her head in 521 seconds approximately how much work did she do in raising the barbell?
5105.8 J
What is The force on a given area by the weight of air above it?
Downforce
What force on an object is caused by the weight of the air above the object?
gravity
What is the force put on a given area by the weight of air above it is?
Downforce
A weight lifter lifts a mass m at contant speed to a height h in time t how much work w is done by weight lifter?
The weight of the mass 'm' is (m g) .That's the minimum force he has to exert in order to balance the force of gravity andlift the weight vertically. If he exerts more force than (mg), the weight will accelerateup, and he'll just wind up either coasting in the middle, or else retarding it at the top.So the eventual outcome is just applying the force (mg) through the distance 'h'.The time taken for the maneuver has no effect on the work done. It's just the amount ofpotential energy gained by the bar-bell due to its increased elevation.Work = [ (force) times (distance) ] or [ (weight) times (height) ].W = m g h
A weight lifter has lifted 150 kg to a height of 2 m. He now lowers it carefully to the floor in 5 seconds. How much power is used Remember the force of an object's weight mass and times gravity.?
588 W
