Lamar Gant, U.S. powerlifting star, became the first man to deadlift five times his own body weight in 1985. Deadlifting involves raising a loaded barbell from the floor to a position above the head with outstretched arms. Determine the work done by Lamar in deadlifting 300 kg to a height of 0.90 m above the ground.

Q: A 1.00 m long rod weighing 300 g hangs from the ceiling. For how much does its potential energy…

A:

Q: A 200 N box is pushed at a constant velocity up an incline that is 5.00 m long and rises 1 m. If the…

A: The Free Body Diagram of the 200 N box is shown below,   The Bos is being pushed at a constant…

Q: ohn, of mass 82.4 kg can do work for about 2.0 minutes at the rate of 1.0 hp. How long will it take…

A: Given data: Mass (m) = 82.4 kg Power (P) = 1.0 hp Height (h) = 12.0 m 1 hp = 746 watts Required:…

Q: In the figure shown, if the mass (m=9 Kg) is moving with constant speed and traveled a distance d=10…

A: The mass m=9kg  The distance d=10m  F=27N

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A: "Since, you have asked multiple questions we can answer only first question according to our…

Q: Starting a race, a 68.2-kg sprinter runs the first 7.04 m in 1.60 s, starting from rest and…

A: Given: The mass (m) of the sprinter is 68.2 Kg. The distance (S) covered by the sprinter is 7.04 m.…

Q: A man pushes a 8 kg object a distance of 5.0 m upward along a frictionless slope that makes an angle…

A:

Q: An accelerating object of mass m=2 kg is fired with an initial speed v=8 m/s at a starting point. If…

A: Given data: Mass m =2 kg Velocity v=8 m/s2. Final Kinetic energy =268 J

Q: Estimate the work (in J) you do to mow a lawn 20 m by 20 m with a 60-cm-wide mower. Assume you push…

A: in this question  we use simple work equation.

Q: Several forces act on an object, but the total work done by all of the forces is zero. What can be…

A: Work done is defined as, by applying a force, displacement of an object from one position to another…

Q: A 1.5 kg object slides across a horizontal surface with an initial speed of 6.84 m/s. If the object…

A:

Q: In the figure below, a 0.250 kg block of cheese lies on the floor of a 891 kg elevator cab that is…

A: Let us write the relation for the resultant force.  F+FN+m-Mg=m+Ma                 1 The…

Q: An accelerating object of mass m=7 kg is fired with an initial speed v;=8 m/s at a starting point.…

A: Given: mass of object m = 7 Kg initial speed vi = 8m/s Final kinetic energy KEf = 369 J To find:…

Q: A force of 20 Ib is required to hold a spring stretched 8 in. beyond its natural length. How much…

A:

Q: Bruce Springsteen is leaving the United States.  He applies a constant force of 20 N to his suitcase…

A: Given: The applied force is 20 N 25o above the horizontal. The mass of the suitcase is 8 kg. The…

Q: A single force acts on a I kg panticle-like object in such a way that the position of the object as…

A:

Q: A single force acts on a 2.0 kg particle-like object in such a way that the position of the object…

A: it is given that the mass of the object is m=2kg we have to calculate the work done on the particle…

Q: A box of mass 20.0 [kg] slides down from the top of a surface inclined at 50.0◦ with height of 10.0…

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Q: A person pushes horizontally on a heavy box and slides it across the level floor at constant…

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Q: When a father takes his daughter out for a spin in a stroller, he exerts a force F>with a…

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Q: Starting from rest, a 60.0 kg student takes 4.0 s to run up a 3.0 m high flight of stairs. On…

A:

Q: A rare and valuable antique chest is being moved into a truck using a 3.000 m long ramp. The weight…

A:

Q: In the figure, a 0.25 kg block of cheese lies on the floor of a 970 kg elevator cab that is being…

A: The normal force on the block,

Q: Consider a particle on which several forces act, one of which is known to be constant in time: F →1…

A: Write the given values, and determine the displacement of the particle as follows.

Q: Using the work and energy relations, solve for the constant force "P" required for a system…

A: The work energy theorem states that the work done by the system of forces is equal to the change in…

Q: A man pushes an 80-N crate a distance of 5.0 m upward along a frictionless slope that makes an angle…

A: Step 1Let the force with which man pushes a crate is given as F and the distance is given as d. It…

Q: A horizontal force of 5 N is required to maintain a velocity of 2 m/s for a block of 10 kg mass…

A: Given data : Force=F Mass=m time=t Velocity=V   TO FIND : Work done

Q: An accelerating object of mass m=12 kg is fired with an initial speed v;-5 m/s at a starting point.…

A: Given: The mass of the body is 12 kg. The initial velocity of the object is 5 m/s. The final kinetic…

Q: As an object moves from point A to point B only two forces act on it: one force is conservative and…

A:

Q: While training for breeding season, a 460 gram male squirrel does 29 pushups in a minute, displacing…

A: Given:- While training for breeding season, a 460 gram male squirrel does 29 pushups in a minute…

Q: A force of 200 N displaces a body by 4 m, calculate the work done (in J). A) 40 B) 500 C) 80 D) 800

A: Given Data: The force applied is, F = 200 N. The displacement happened is, s = 4 m. The work is…

Q: Spiderman, whose mass is 80.0 kg, is dangling on the free end of a 12.0-m-long rope, the other end…

A: Mas, m = 80 kg  Length of rope, l = 12 m

Q: A man pushes an 80-N crate up a frictionless slope that makes an angle of 30° with the horizontal.…

A: According to Bartleby guidelines we can only solve the first question at a time.. Kindly post the…

Q: A 55-kg marathon runner runs up the stairs to the top of Taguig’s 318-m Grand Hyatt Manila, the…

A: Mass of the runner M=55 kg The height reached h=318 m The time taken t=20 minutes=20×60 s=1200 s…

Q: A uniform force of (3i + j) N acts on a particle of mass 2 kg. Hence, the particle is displaced from…

A:

Q: What average mechanical power (in W) must a 60.0 kg mountain climber generate to climb to the summit…

A: solution as

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A: Given data: Mass (m) = 80 kg Time (t) = 15 s Upward displacement (h) = 25 m Required: Power (P)

Q: A man pushes an 80-N crate up a frictionless slope that makes an angle of 30° with the horizontal.…

A: Given: The weight of the object is 80 N. The slope is 30o with horizontal. The displacement of the…

Q: 28. Ssscalar. A box of mass 20.0 [kg] slides down from the top of a surface inclined at 50.0° with…

A: mass = 20 kg θ = 50oh = 10 m μk = 0.35

Q: If it takes 4.00 J of work to stretch a Hooke's-law spring 5.0 cm from its unstressed length,…

A: Work done to stretch the spring from its unstretched length to 5 cm  = 4 Joules Using, formula for…

Q: In the figure, a constant external force P = 160 N is applied to a 20.0-kg box, which is on a rough…

A: The total work done is, Wnet=12mvf2-12mvi2Wnet=12mvf2-12vi2Wnet=1220.0 kg2.60 m/s2-0.500…

Q: An accelerating object of mass m=14 kg is fired with an initial speed v-2 m/s at a starting point.…

A:

Q: What is the average power output of a 55.0 kg woman who does 50 deep knee bends in which her center…

A: The expression for the output power is,

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Q: a man pushing a crate of mass m=92kg at a speed of v=0.850m/s encounters a rough horizontal surface…

A:

Q: Consider a particle on which several forces act, one of which is known to be constant in time: F →1…

A: Given- F1→ = (3 N)i∧+ (4 N)j∧  Particle moving along x axis from (x= 0 to x=5) Particle moving along…