300 J of work are required to fully drive a stake into the ground. If the average resistive force on the stake by the ground is 708 N, how long is the stake? A 0.47 m, B 0.37 m, C 0.27 m, D 0.42 m

Q: >) A child does 8.97 x 10² J of work in pulling a sleigh 45.3 m along a snowy horizontal surface.…

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Q: A box that weighs 10 N slides down an inclined ramp with an inclination angle of θ=30° . When the…

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Q: A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a…

A: Given Data: The magnitude of a constant force is, F=47 N The final kinetic energy of a student is,…

Q: A student wearing frictionless in-line skates on a horizontal surface is pushed by a friend with a…

A: Given data: The pushing force applied by the friend on a student is F = 46 N. The final kinetic…

Q: Suppose that 3 J of work is needed to stretch a spring from its natural length of 24 cm to a length…

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Q: How much work is needed to change the speed of a 2375 kg sport utility vehicle from 15.0 m/s to 60…

A: Given data:  Mass (m) = 2375 kg Initial velocity (Vi ) = 15.0 m/s Final velocity (Vf) = 60 m/s…

Q: What is the work required to raise a 200 kg barbell to a height of 1.25 m? O 2 500 J O 1755 J O 3…

A: Write the expression for the work done to raise a barbell. Here, m represents the mass, g…

Q: What average power is needed to accelerate a 1 kg soccer ball from rest to 36 km/hr in 0.1 seconds?…

A: Given data: Mass (m) = 1 kg Initial velocity (v0) = 0 m/s Final velocity (v) = 36 km/hr Time (t) =…

Q: A 213 kg crate slides 7.6 m until coming to a stop after being pushed by a large man. The effective…

A: Given data: Mass (m) = 213 kg Displacement (d) = 7.6 m Coefficient of kinetic friction (μk) = 0.37…

Q: It requires 6.0 J of work is needed to push a 2.0-kg object from point A to point B up a…

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Q: Using 1000. J of work, a small object is lifted from the ground floor to the third floor of a tall…

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Q: A car's engine generates 120,000 W of power as it exerts a force of 12,000 N. How long does it take…

A: Force=12000 N Displacement=120 m Work done(W)=Force*Displacement=12000*120 J=1440000 J

Q: Suppose that 3 J of work is needed to stretch a spring from its natural length of 36 cm to a length…

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Q: It takes 157 kJ of work to accelerate a car from 23.4 m/s to 27.3 m/s. What is the car's mass?

A: Given, Work done, W=157 kJ Initial velocity, u=23.4 m/s Final velocity, v=27.3 m/s

Q: An 80-kg jogger that is initially running at 5.0 m/s uniformly accelerates to 8.0 m/s in a time of…

A: Mass of jogger = 80 kg  Initial speed of jogger = 5.0 m/s  Final speed of jogger = 8.0 m /s

Q: It takes 212 kJ of work to accelerate a car from 21.7 m/s to 29.2 m/s. What is the car's mass?

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Q: What is the work required to raise a 200 kg barbell to a height of 1.25 m? From the problem, what is…

A: Given data:  Mass (m) = 200 kg Height (h) = 1.25 m Required: Force (F)

Q: A 5.0-kg cart is moving horizontally at 4.0 m/s. In order to change its speed to 6.0 m/s, the net…

A: Given: Mass of cart m=5.0 kg Initial speed u=4.0 m/s Final speed v=6.0 m/s To find net work done in…

Q: 'A traveler pulls on a suitcase strap at an angle 36° above the horizontal. If 908 J of work are…

A: Given Work done by the strap = 908 J Horizontal distance move = 15 m angle of inclination of force…

Q: 300 J of work are required to fully drive a stake into the ground. If the average resistive force on…

A: Given information: The work done to move the stake on to the ground (W) = 300 J The resistive force…

Q: It takes 1.09 J of work to compress a spring 11.1 cm. What is the force constant of the spring in…

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Q: A car accelerates from rest to 14 m/s in 5 seconds on a horizontal road under perfect conditions. If…

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Q: How much work (in J) is required to move a box that weighs 13 kg upward by 65 cm? Use the fact that…

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Q: A mass of 60 kg is moved vertically upwards through a distance of 6 m. If the gravitational…

A: Mass, m = 60 kg Distance, d = 6 m

Q: A 900-kg car cruising at a constant speed of 60 km/h is to accelerate to 100 km/h in 4 s. The…

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Q: How much work must be done by frictional forces in slowing a 1000.0 kg car from 19.8 m/s to rest?…

A: Given data:  Mass (m) = 1000.0 kg Initial velocity (Vi) = 19.8 m/s Final velocity (Vf) = 0 m/s…

Q: What is the potential energy in J of a bungee jumper standing on a 0.109 km bridge that weighs 85…

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Q: Q45) A 8 kg box is moving horizontally at 6 m/s. To change its speed to 10 m/s, the net work done on…

A: Given a box of mass m=8 kg which is moving horizontally with a velocity of v1= 6 m/sec. Its speed is…

Q: It takes 156 kJ of work to accelerate a car from 20.4 m/s to 28.2 m/s. What is the car's mass?

A: The mass of the car can be calculated in given steps:Given:

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 object whose mass is 2.00 kg is lifted upward a distance of 3.55 m against the pull of gravity on…

A: Given: The mass of the object is 2 kg. The height of the object is 3.55 m. The acceleration due to…

Q: A car's engine generates 80000 W of power as it exerts a force of 6000 N. How long does it take the…

A: Given, Power generates engine of the car, P = 80000 Wforcec exerted by engine, F = 6000 Ndistance…

Q: A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the…

A: As object is moving horizontally, potential energy will remain constant. From work energy theorem,…

Q: 820 J of work is done when an object is raised from ground level to a height 5.0 m. What is the mass…

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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: A particle, mass 8 kg, moves along the y axis with a speed of 3.3 m/s. It experiences a force of 16…

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Q: 19. If a ski lift raises 100 passengers averaging 660 N in weight to a height of 150 m in 60.0 s, at…

A: average weight of a passenger= 660 N Total weight lifted= 100×660= 66000 N Height H= 150 m time…

Q: A car's engine generates 80000 W of power as it exerts a force of 6000 N. How long does it take the…

A: Given: The power of the engine is 80000 W. The force exerted by the engine is 6000 N. The…

Q: Using 1000. J of work, a small object is lifted from the ground floor to the third floor of a tall…

A: Given parameter                        Work(W) = 1000J                        Time (T) = 20s

Q: It takes 203 kJ of work to accelerate a car from 20.9 m/s to 29.2 m/s. What is the car's mass

A:

Q: A block is pulled with a one dimensional variable force F = 9x² – 2x. Calculate the work F done by…

A: Work done  W=∫x1x2Fdx=∫159x2-2xdx=9x33-2x2215=9533-2522-9133-2122=348 J

Q: A block of mass m 1.2 kg is placed on a rough incline surface making an angle 0 = 28.5 with…

A: To determine: The work done by the friction force of the block on a rough inclined surface.   Given:…

Q: A student pushes a 0.40 kg box up a 30° inclined plane at a constant speed of 1.2 m/s. The student…

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Q: A block of wood of mass 2.6 kg is moved up along 8.9 m incline from rest by applying a horizontal…

A: Consider the free body diagram shown below.

Q: What power is needed to move a 13.4 kN car up an 8 degree incline with a constant speed of 80 kph…

A: Given: Mass of car, m = 13.4 kN = 1366.42 kg Angle = 8 degree Speed, v = 80 kph = 80 X 5/18 = 22.22…

Q: Force [F] N) F: F1 X2 Stretch (Ax) (m) When a spring is stretched to x1 = 16.1 m, the force applied…

A: Work done in stretching the spring may be calculated by finding the area of the shaded trapezium…

Q: A student wearing frictionless roller skates on a horizontal surface is pushed by a friend with a…

A: Given: Initial velocity of student is 0 m/s. Force applied is 52 N. Final kinetic energy is 345 J.…