A weight lifter lifts a 310 - N set of weights from ground level to a position over his head, a vertical distance 2.00 m. How much work does the weight lifter do weights at constant speed?

Q: A crane lifts a 650 kg beam vertically upward 9.6 m and then swings it westward 18 m. How much work…

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Q: How much work does an elevator motor do raising a mass of 1176 kg vertically 15.3 m? I solved this…

A: To raise the mass the elevator motor must work against gravity. From conservation of energy the work…

Q: A 50-kg cavan of rice is pulled along a 10-m horizontal ramp with a force of 750 N. If it is dragged…

A: Given: Mass (m) = 50 kg  Force (F)  = 750 N  Displacement (d) = 10 m

Q: A force F = (4xi-3y2j)Nacts on a particle, the particle moves along the x-axis from x= 1 to x = 4m.…

A: Write the expression of the force vector on a particle.   F=4xi-3y2j   Write the expression of the…

Q: A spring has a natural length of 2m. It requires 384 j of work to stretch the spring to 10m.…

A: Work done: The definition of the work required for the displacement (x) of the particle from point a…

Q: A constant force of magnitude 115 N acts on a particle that moves from A = (9i + 3j) m to B = (9i +…

A: The displacement vector (s) from point A to B will be given as, Let the force vector (F) is given…

Q: A body dropped from a height H reaches the ground with a speed of 1:2 VgH. Calculate the work done…

A: Given, height = H             velocity v = 1.2gH           work done W = ?

Q: A 3.0 kg block starts with a speed of 18 m/s at the bottom of a plane inclined at 39° to the…

A: Mass of block (m) = 3 kg Speed of block at the bottom of incline (v)= 18 msAngle of plane with the…

Q: A body of mass 2 kg is initially at rest on a horizontal frictionless plane. It is then pulled 4 m…

A: Given value--- mass = 2 kg. distance = 4 m. Force = 25 N. We have to find--- final speed?

Q: A crane lifts a 650 kg beam vertically upward 10.8 m and then swings it westward 18 m. How much work…

A: The formula for workdone is W=Fxcosθ

Q: 50kg block is pushed a distance of 8m a long a level floor at a constant speed by a force applied at…

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Q: A single force acts on a 3.0 kg particle object whose position is given by x= 3.0t-4.0t^2+.5t^3,…

A: The mass of the particle m=3.0 kg The position of the particle x=3.0t-4.0t2+.5t3 The velocity of the…

Q: A 2-kg crate slides down a slope, with a distance of 2 meters, before it hits the ground. The slope…

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Q: A single conservative force acts on a 4.90-kg particle within a system due to its interaction with…

A: Given data, Mass of the particle = 4.90 kg Force, Fx=2x+4 Also, x = 0.92 m to x = 6.45 m

Q: person pulls a luggage along a level road for 5 m by exerting a force of 20N at an angle of 30° with…

A: Given: The displacement of the object is 5 m. The applied force is 20 N. The angle between applied…

Q: 1040 kg car is travelling at a velocity of 8.2 m/s.  How much work must be done by the engine to…

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Q: A crate of mass 20.0 kg is pushed up a rough incline, which makes an angle of 25° with the…

A: Given data: -  The mass of the crate is m = 20.0 kg. The angle of the rough incline is θ = 25o. The…

Q: Dr. Frankenstein is pushing a loaded Aldi’s cart through a grave- yard collecting parts for his…

A: F=300 Nx=5 mm=85 kgv=0.8 m/s

Q: A crane (il) lifts a plate of blocks at a construction site in Khor Bamba ( ) in 3 stages using a…

A: m=Mass of plate=4.4 Ton=4.4×103 kgg=Acceleration due to gravity=9.8 m/s2h=Height to which the plate…

Q: A 28-kg skier starts from rest at the top of a rough (not frictionless) 39° slope and travels 199 m…

A: To solve the question we will find out the potential energy at the top of the slope and the kinetic…

Q: A crane pulls up a car weighing 500kg to a vertical height of 4m. Calculate the work done by the…

A: Work is Calculated by:   Work = Force x Displacement   Work = mgH           ......(1)     ( Here H…

Q: A 4.25 kilogram mass slides down a 2.50 meter long ramp which is tilted at an angle of 22.0 degrees.…

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Q: 1. A man is pulling a suitcase of mass 20 kg along a rough horizontal floor at constant velocity.…

A: The suitcase of mass 20 kg is being pulled by the man across the rough horizontal surface. The force…

Q: Suppose you drag a box 8.0 m across a horizontal floor, exerting a force of 90. N at 35 degrees…

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Q: If a man lifts a 20.0‐kg bucket from a well and does 6.00 kJ of work, how deep is the well? Assume…

A: Mass of bucket (m) = 20.0 kg Work done ( W ) = 6.00 kJ

Q: A 2-kg crate slides down a slope, with a distance of 2 meters, before it hits the ground. The slope…

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Q: While hovering, a typical flying insect applies an average force equal to twice its weight during…

A: Mass of insect (m) = 10 g = 0.01 kg weight of insect (w) = m×g = 0.01×9.8= 0.098 N Applied force (F)…

Q: A car climbing up a hill at constant speed of X m/s. Given the car is going up a slope of 5 degree…

A: The mass of the car, The inclination of the plane, The power of the engine, The frictional force,

Q: A 50 kg box is pushed 7 m across the floor at constant velocity by a force F= 500 N directed 53…

A: Simple and intersting problem from basic physics. Please have a good look

Q: A student slides her 75.0 kg desk across the level floor of her dormitory room a distance 3.00 m at…

A: The student maintained a constant speed. According to Newton’s first law, net force on the desk is…

Q: 4.0 J of work is reflected by stretching a spring with a spring constant of 2500N / m. How much does…

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Q: a toy tow truck pulls a 6kg hot wheel a distance of 980m. the tow truck applies a force of 24N at 30…

A: Mass of hot wheel (m)= 6kg Force applied (F)= 24 N Angle between force applied and displacement  (A)…

Q: A 70 kg hiker climbed a mountain 1000 m high. Assuming the work was done at a steady rate during 3…

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Q: A 1000 kgm car travelling at 100 km/hr starts its brakes to slow down. it travels a distance and…

A: Given data: Mass of car, m=1000 kg Initial velocity of car, u=100 km/hr=27.78 m/s (since, 1 m/s =…

Q: A water skier is pulled by a towrope behind a boat. He skies off the side, and the rope makes an…

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