0
When A weight lifter in holding a weight of 120 kg on his shoulder for 30 s .calculate amount of work done.?
Wiki User
∙ 7y agoWant this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
If a weight lifter is holding barbells above his head what does he have to do to perform work?
Step Forward
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 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) :)
How does the of a 115kg barbell compare to the weight of the lifter?
It would depend on how strong the weight lifter is.
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.
What is the amount of work done by a weight lifter in holding a weight of 100kg on his shoulder for 40 seconds?
While just holding the weight on his shoulder, the weight lifter does no work! For work to be done, the mass must be moved through a distance … No Movement, No Work! (but don't tell that to a weight lifter …)
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.
Can you adjust the rocker arms on a 1997 jeep Cherokee Inline 6-cylinder?
No, they are torqued to a specific amount and the lifter controls lash.No, they are torqued to a specific amount and the lifter controls lash.
If a weight lifter is holding barbells above his head what does he have to do to perform work?
Step Forward
What is the difference between a ballet dancer and a weight lifter?
a weight lifter has to have a surtain amount of fat to lift the weights and a ballet dancer has to be skinny and flexible
What is a solid lifter?
This type of lifter, unlike its hydraulic counterpart, has no moving internal parts. This means it has no self-adjusting capability and therefore needs to have the rockers adjusted to give a certain amount of working clearance.
What part of speech is lifter?
Lifter is a noun.
Weight lifter strains to lift a record amount without moving the weights from the floor A sportscaster lifts her microphone to report on the attempt Who is doing more work?
the Olympic Weight lifter because the weights are much heavier then the microphone
What is a car hoist?
a car lifter or a motor lifter
How can you tell the difference between a hydraulic lifter and a mechanical lifter on a Chevy 350 engine?
Take a pushrod and push down on the plunger in the lifter. A hydraulic lifter is spring loaded.
When was Lifter Puller created?
Lifter Puller was created in 1994.
When did Lifter Puller end?
Lifter Puller ended in 2000.
