A crane lifts a 300 kg load at a constant speed at a vertical distance of 3.0 m in 10 s. Calculate the rate at which the crane is doing work on the load. Required to answer. Single choice.     a. 2.5 x10^2 W b. 3.0 x 10^3 W c. 5.6 x 10^2 W d. 8.8 x 10^3 W

Q: 2.A box is pushed by force of 300 N up an inclined plane (incline angle = 30.0°). The mass of the…

A:

Q: A 3.75-kg crate starting at rest slides down a rough 6.20-m-long ramp, inclined at 35.0° below the…

A:

Q: A work of 12 J is needed to stretch a certain spring by 30 cm a) what is the force constant of the…

A: Given data: The work needed to stretch the spring, W=12 J. The distance through which the spring is…

Q: QUESTION: A 75 kg carpenter ascends a 7.0 m vertical ladder to a house's flat roof. He then travels…

A: Since we only answer up to 3 subparts so we will answer first 3. Please resubmit the question by…

Q: 1. A 125-kg washing machine rests on the floor. How much work is required to move it at a distance…

A: Given: Weight of machine W = 125 kg Distance to be moved by the machine : d = 6 m To calculate the…

Q: A spring-loaded gun fires a 0.090-kg puck along a tabletop. The puck slides up a curved ramp and…

A: Given data The mass of the puck is, m=0.090 kg The spring displacement is x=23.5 cm The spring…

Q: A system in which only one particle can move has the potential energy shown in (Figure 1). Suppose…

A: Given information: The potential energy (U1) = 18 J The potential energy is equal to 18 J at 0 cm…

Q: A sled dog can accelerate a 250 kg sled from 0 m/s to 8.5 m/s in 8 s. (8 Points) a. How far will the…

A: (a) Sleg dog has traveled Xf= 34 m in that time. (b) work done W= 9031.25 Joules

Q: Draw a sketch and also a good FBD to identify the relevant forces doing work. Pay attention to the…

A:

Q: A box m = 58 kg is being pulled by a constant force F = 173 N at an angle of θ = 23 degrees. The…

A: Draw the free-body diagram of the box.

Q: Matthew pulls his little sister Sarah (mass=22 kg) along the horizontal ground in a wagon. He exerts…

A:

Q: A spring-loaded gun fires a 0.090-kg puck along a tabletop. The puck slides up a curved ramp and…

A: From conservation of energy, 12kx2=mghh=kx22mg Substitute the given values, h=875 Nm23.0×10-2…

Q: 2.0 m 30°

A: The object's mass is, m=10 kg The compression of a spring is, x=0.75 m The spring constant is, k=500…

Q: A 0.800-kg particle has a speed of 1.60 m/s at point A and kinetic energy of 7.30 J at point B. (a)…

A: (a).The kinetic energy at A is

Q: 1. An Eskimo returning from a successful fishing trip pulls a sled loaded with salmon. The total…

A: (a) Find the amount of work done on the sled. W=Fdcosθ=1.20×102 N5.0 mcos0°=6×102 J=600 J

Q: 3. a 0.35-kg fruit is falling from a tree with a speed of 5.0 m/s after t = 1.0 s. At t = 2.0 s, the…

A:

Q: A 5.2 g marble is fired vertically upward using a spring gun. The spring must be compressed 8.9 cm…

A:

Q: 4)A 55 kg hiker starts at an elevation of 1600 m and climbs to the top of a 3300 m peak. What is the…

A: To find the change in potential energy

Q: An object moves in the positive x-direction under the influence of a force Fx . A graph of Fx vs. vx…

A: A) 8.88kW  B) 9kW

Q: ch work (úin Joules) is done in lifting a 2.5 kg dictionary from the floor onto a shelf 1.9 m high?…

A: Since we only answer upto 3 sub-parts, we will answer the first 3. Please resubmit the question and…

Q: 3. a 0.35-kg fruit is falling from a tree with a speed of 5.0 m/s after t = 1.0 s. At t = 2.0 s, the…

A:

Q: tion F(x) = ax2 - bx, where a = 65 N/m2, b = 18 N/m, and the positive x direction is in the…

A: GivenF(x)=ax2-bxwherea=65 N/m2b=18 N/m

Q: 4. A 10kg object is travelling at a speed of 10m/s and then encounters a rough patch for 2m after…

A:

Q: A 6.50 kg box slides 4) from the top of a ramp to the bottom at a constant speed, as shown in the…

A: recall Work-kinetic energy theorem ∑W=∆KEHere ∆KE=0 as v=constant

Q: 3. a 0.35-kg fruit is falling from a tree with a speed of 5.0 m/s after t = 1.0 s. At t= 2.0 s, the…

A:

Q: A 3.25-kg crate starting at rest slides down a rough 7.00-m-long ramp, inclined at 27.5° below the…

A:

Q: A 0.800-kg particle has a speed of 1.60 m/s at point and kinetic energy of 7.70 J at point B . (a)…

A: Given,

Q: A child drags her toy box (m = 4 kg) up a hill by applying a force F = 25î + 35(N). The surface of…

A:

Q: A horse pulls a cart with a force of 15 lb at an angle of 34° above the horizontal and moves along…

A: applied force (F) = 15 lb Angle (θ) = 34o above the horizontal Constant speed (v) = 6.7 mihr

Q: A 0.200-kg particle has a speed of 1.50 m/s at point and kinetic energy of 7.10 J at point Ⓡ. (a)…

A: Given  Mass , m = 0.200 kg  Speed at point A , VA = 1.50 m/s  Kinetic energy at point B , KB = 7.10…

Q: A spring has a natural length of 28 cm. Suppose a 26 N force is required to keep it stretched to a…

A: Given value--- Natural length = 28 cm . Stretched length = 38 cm . Force = 26 N. We need to…

Q: v = 15 ms The Smart Car shown in the picture has speed and mass as shown. 860 kg a If the driver…

A: According to Newton's second law of motion, the net force acting on an object is the product of the…

Q: An object of mass 10 kg is released at point A,slides to the bottom of the incline,then collides…

A: SOlution:

Q: A 0.200-kg particle has a speed of 2.30 m/s at point O and kinetic energy of 7.10 J at point B. (a)…

A: Mass of the particle m=0.200 kg The speed of the particle at point A ,vA=2.30 m/s  The kinetic…

Q: 1. A 10.0-kg crate slides along a horizontal frictionless surface at a constant specd of 4.0 m/s.…

A: Given data- Mass of crate m=10.0 kg Speed on the upper horizontal surface Vi=4.0 m/s Speed of the…

Q: A 700g block is released from rest at height h0 above a vertical spring with spring constant k=334…

A: Given that:Mass of block (m) = 700 g = 0.7 kg spring constant (k) = 334 Nmcompression (d) = 17.5 cm…

Q: A 4.5-kg block slides down a frictionless incline making an angle of 55.0° with the horizontal. (a)…

A:

Q: A small block of mass 230 g starts at rest at A, slides to B where its speed is v. = 7.8 m/s, then…

A: The motion of the block can be divided into curved portion and horizontal portion. Considering the…

Q: A 0.59-kg particle has a speed of 5.0 m/s at point A and kinetic energy of 8.5 J at point B. (a)…

A: Given Data:- The mass of the particle is m = 0.59 kg. The speed of the particle at point A is vA =…

Q: A 0.42 kg particle has a speed of 5.0 m/s at point A and kinetic energy of 7.5 J at point B. (a)…

A: Write the given values of this problem. m=0.42 kgvA=5 m/sK.EB=7.5 J

Q: 3. An object of mass 10 kg is released at point A, slides to the bottom of the incline, then…

A: (a) speed at the bottom of the incline At maximum compression, potential energy of the spring is…

Q: 4) To pull a 50.0 kg crate across a horizontal frictionless floor, a worker applies a force of 200…

A: To determine: The work done on the crate across a horizontal frictionless floor by, (a) The force…

Q: 1. An Eskimo returning from a successful fishing trip pulls a sled loaded with salmon. The total…

A: Given data: The total mass of the sled and salmon is, m = 50.0 kg Eskimo exerts a force of magnitude…

Q: 3. How much work is done by an applied force to lift a 15 N block 3.0 vertically at block 3.0 meters…

A: Force applied on the block, F=15 N Displacement of the block, d=3 m

Q: A person pulls a toboggan for a distance of 33.7 m along the snow with a rope directed 21.2° above…

A: Given Data: Distance covered, Rope inclination angle,   Tension,

Q: 5. A 1-kg rock is dropped from a height of 6.0 m. a. What is the mechanical energy of the rock? b.…

A: Given data: Mass of rock, m=1 kg Height, h=6 m

Q: A work of 12 J is needed to stretch a certain spring by 30 cm a) What is the force constant of the…

A: W=12kx2k=2Wx2=212 J30 cm1 m100 cm2=267 N/m