A weight lifter lifts a 350-N set of weights from ground levelto a position over his head, a vertical distance of 2.00 m. Howmuch work does the weight lifter do, assuming he moves theweights at constant speed?

Q: Three clowns move a 275 kg crate 10.5 m to the right across a smooth floor. Take the positive…

A: The expression for the work done is as follows: W=F→·d→W=Fdcosθ               1 The expression to…

Q: (a) What is the average useful power output (in W) of a person who does 5.00 x 106 J of useful work…

A:

Q: ed of 13.2 km/hr average power

A: Given: Force of horse pulls is 140 N Angle is 28o Speed is 13.2 km/hr

Q: I nees help on both problems. I don't know how to start.

A: a) Work done The expression for the force applied on the skier should be equal to the force due to…

Q: A 50-gram block rests on an inclined plane 15o with the horizontal. The coefficient of friction is…

A:

Q: a force F=(3x4-5) N acts on a body movin in 1D in x direction from the point x=0 to x=4 . find the…

A:

Q: A car of mass m = 1200kg travels a distance A, = 2.2 km. At the beginning of the movement the speed…

A: Given that the car of mass m=1200kg moving initially with velocity v0=10m/s covers a distance…

Q: A 3500 lb SUV accelerates from 0 to 30 mph over a distance of 80 feet. Use work and energy to…

A: As per the work-energy theorem, Here, W, K, F, d, m, u, and v represent the force’s work, the car’s…

Q: If there is no friction , the work=0 True or false

A: The work done on an object is W=Fd cos  thera Here F is the force.        d is the distance.…

Q: A loaded elevator has a total mass of 29 kg and is lifted to a height of 200 m in a time of 45s.…

A: Given: The mass of the object is 29 kg. The height of the object is 200 m. The time interval is 45…

Q: A 1500 kg car accelerates from a uniformly stationary state at a speed of 10m / s in 3s. Find the…

A: Write the variable with the given values.

Q: A 53.2-kg skateboarder starts out with a speed of 2.33 m/s. He does 85.8 J of work on himself by…

A:

Q: 4. A 125-kg crate is pulled across the floor by a horizontal rope with tension 365 N, starting from…

A: Solution      Given dataMass of crate m=125kgRope tension T=365NDisplacement d=10mCoefficient of…

Q: Problem 2: A 32 kg block is pulled along the ground for a distance of 5.2 m by a 63 N force at an…

A: Formula of work done is as follows; W=Fdcosθ…

Q: A big man is towing a large box with a cord that makes an angle of 25 degreeswith the horizontal.The…

A: Force applied on box = 100 N displacement of box = 2 meter angle between force and displacement…

Q: A 4kg block is lowered down a rough inclined plane a distance of 5m from A to B. of 37o with the…

A: 1The work of the weight during the motion of the block from A to B.2 The workdone by the friction on…

Q: How much work done in k J( kilo joule) can a 3 hp (horsepower) motor do in 1 hour? (Write the full…

A: Power is the amount of force per unit velocity Power=force×velocity P=Force×distancetimeP×time=work…

Q: Suppose the car approches a hill and has the intial speed 106 km/h at the bottom of the hill. The…

A: Given Data : The initial speed of the car at the bottom of the hill is given as u=106 ms

Q: (a) Calculate the work done (in J) on a 1200 kg elevator car by its cable to lift it 38.0 m at…

A:

Q: A skier of mass 63 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to…

A: Given:- mass of the skier m= 63 kg height h= 40 m slop is The speed of the skier is v= 2.3 m/s…

Q: A boy pulls a 15-lb sled 50 ft along a horizontal surface at a constant speed. What work does he do…

A: Given data: Mass of sled is, m=15 lb=15×0.45=6.75 kg. Distance travelled by sled is, s=50…

Q: A block with m = 1kg moves up an incline (0-30°) with an initial speed of 10 m/s. Vo (a) If there is…

A: Given data: Mass of block is, m=1 kg . Angle of inclination is, θ=30∘. Initial speed of bock is,…

Q: A box is pulled with a force of 40 N to produce a displacement of 7 m. If the angle between the…

A: as per our guidelines we are supposed to answer only one question. Kindly repost other questions as…

Q: A hummingbird hovers by exerting a downward forceon the air equal, on average, to its weight. By…

A: Given,

Q: A 12.0 kg package in a mail-sorting room slides 2.00 m down that is inclined at 53.0° below the…

A: Solution-Given thatmass of package (m1)=12 kgdistance down the inclined(d)=2 mcoefficient of…

Q: leration, if the effec ures.

A: Given: Mass of crate is 45 Kg Distance is 10.1 m Friction coefficient is 0.6

Q: A winch has a maximum power output of 500 W. It is dragging a 200 kg crate up a slope inclined at…

A:

Q: An airplane pilot fell to the ground after jumping from an aircraft without his parachute opening.…

A: (a) The average force exerted, F = 19,833N (b) The work done W = 41,650J Explanation:

Q: T7)A person is dragging a 20kg box along the ground by a rope 30° to the horizontal with à förce 81…

A: 17)     18)  (B) the work done by the net force.

Q: Question 10. Jerry rides his bicycle down a 6° hill (inclined is 6° with the horizontal) at a steady…

A:

Q: A sleigh sliding on a stiff icy mountainside obeys the law of conservation of Mechanical energy.…

A: The sleigh is initially at rest at the top of the 1 km high mountain peak. Since the sleigh is at…

Q: A skier of mass 77 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to…

A: Distance for which he was pulled,d= 55m Angle of slope with horizontal= 30°