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What is the amount of work done by a weight lifter in holding a weight of 100kg on his shoulder for 40 seconds?
Wiki User
∙ 10y ago
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 …)
Wiki User
∙ 10y ago
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What does the letters in WALLE'S name stand for?
Waste Allocation Load Lifter - Earth Class
What makes a 455 super duty different from a 455?
The Pontiac 455 Super Duty was a re-engineered for racing version of the regular 455 Pontiac. It had a stronger block with cross webbing in the lifter valley, malliable iron four bolt mains, provisions for dry sump oiling, forged steel connecting rods, forged aluminum pistons, 80 psi oil pump, Better flowing cylinder heads with pressed in tubes sealing the intake pushrods and round exhaust ports, longer valves (inconel exhaust valves), stronger valve springs, a high flow cast iron intake manifold, high flow cast iron exhaust manifolds (same as ram air iv and 455ho) Other unique feature of 455SD was the small cam gear, larger distributor drive gear, and corresponding larger hole in the block for the distributor. The SD was origanally slated to have the ram air iv 308/320 cam but could not meet emission standards, so the smaller ram air III cam was substituted for production. The 455 SD was underrated @ 290hp, but road tests of 1973-1974 Trans Ams showed quarter mile times in the mid thirteens at 104-107 mph, indicating a true net output of more than 350HP. If it had been born a few years earlier with high compression and the larger ram air iv cam it surely would have had a 425+ gross HP rating.
When A weight lifter in holding a weight of 120 kg on his shoulder for 30 s .calculate amount of work done.?
To calculate the work done, we need to know the distance over which the weight lifter held the weight. If we assume the weight lifter held the weight steady at shoulder height (about 1.5 meters), the work done would be Weight x Height = 120 kg x 1.5 m = 180 Joules.
How much work is done a weight lifter when he hold a weight of 80 kg on his shoulder for 2 minutes?
The work done by the weight lifter holding a weight of 80 kg on his shoulder for 2 minutes is zero, assuming he remains stationary. Work is calculated as force multiplied by displacement in the direction of the force, and since there is no displacement in this case, no work is done.
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.
Are the forces acting on the weight lifter and the weights balanced or unbalanced?
The forces acting on the weight lifter and the weights are balanced when the weight lifter is holding the weights stationary. The force exerted by the weight lifter is equal and opposite to the force of gravity acting on the weights.
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
How can you tell if you have blown lifter?
You can tell if you have a blown lifter by get someone to count of 10 seconds for you and you need to count how many times the noise happens in the 10 seconds and then multiply by 6. That should give you a number. Take that number and then compare it to your idle RPM's. If it's the same as your idle RPMs, then it's likely bottom end knocking. If it's half as fast as your RPMs - then it's valvetrain, like a lifter or an exhaust leak.You can tell if you have a blown lifter by get someone to count of 10 seconds for you and you need to count how many times the noise happens in the 10 seconds and then multiply by 6. That should give you a number. Take that number and then compare it to your idle RPM's. If it's the same as your idle RPMs, then it's likely bottom end knocking. If it's half as fast as your RPMs - then it's valvetrain, like a lifter or an exhaust leak.
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.
If a weight lifter is holding barbells above his head what does he have to do to perform work?
The weight lifter needs to apply force to the barbells and move them over a distance in the direction of the force being applied. Work is calculated as force multiplied by distance, so by exerting force to lift the barbells overhead, the weight lifter is performing work against gravity.
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
