Susan's 13.0 kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30∘ above the floor. The tension is a constant 28.0 N and the coefficient of friction is 0.170. Use work and energy to find Paul's speed after being pulled 3.30 m .
Q: A sledder has 500 J of potential energy and 230 J of kinetic energy at one point on a steep hill. a.…
A:
Q: A small plane tows a glider at constant speed and altitude. If the plane does 2.00 x 105J of the…
A:
Q: You throw a 20-NN rock vertically into the air from ground level. You observe that when it is a…
A: Given: weight of rock W= 20N height to…
Q: 1. A crate of mass 10.0 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The…
A:
Q: 16. A diesel-powered crane (mc = 2.93 x 10° kg) is lifting a heavy block of concrete mb = 8.44 x 104…
A:
Q: 1. Find the work done on a 48,500 g object to move it on a 22.55 m up a 25.50 degrees incline. -…
A:
Q: A box of mass 4.0 kg hangs by a cable from the ceiling of an elevator. The elevator is moving down…
A: Given data: Mass (m) = 4.0 kg Constant Speed (v) = 5.0 m/s, downward Height (h) = 8.0 m g = 10…
Q: 01a. A curler pushes a 16 kg “rock" 5.04 m horizontally in 7.03 s using a horizontal force of 68.3…
A:
Q: The loaded cab of an elevator has a mass of 1.40 × 103 kg and moves 186. m up the shaft in 16.0 s at…
A:
Q: The loaded cab of an elevator has a mass of 3.80 × 103 kg and moves 196. m up the shaft in 23.0 s at…
A: We have to find P=?
Q: What is the Net Work ? Wnet = Fnetd cos θ Cart Mass, mc . 284 kg Angle, theta 49 degrees…
A: Work done is defined as the force applied multiplied by the distance traveled. Work done done is…
Q: work done by Jerome in climbing the staircase.
A: Given: Mass of the person is m=102 kg Vertical distance covered is h=2.29 m Time taken is t=1.32 s…
Q: A cart of mass 25.5 kg is being pulled with a force of 10 N at an angle of 30° with the direction of…
A:
Q: A 22.0 kg child plays on a swing having support Express your answer in meters per second. ropes that…
A:
Q: 7. a. You push a couch across the floor, pushing with a force of 282.5 N horizontally. It slides…
A:
Q: A car runs out of gas at the bottom of a hill. It rolls 70 m before coming to a complete stop. If…
A: Given: The mass of the car is 800 kg. The angle of inclination is 10°. The coefficient of friction…
Q: 1 lige pulley going up polling down IN on is lifting a crate (mass = m) using a . The crate rises at…
A: Mass = m = 53 kg Distance = d = 2.7 m Work done by person = W = ?
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: In the following diagram, M = 5 kg, m = 3 kg and the kinetic frictional coefficient is 0.25 between…
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: A child sets a 2.5 kg block in motion by giving it a push along a floor. This gives the block a…
A: Given: The mass of the block is m=2.5 kg The initial velocity of the block is u=0 m/s The final…
Q: A 12.0 kg box is pulled 3.00 m to the right along the floor by applied force P=40.0N at 30.0…
A:
Q: You pull a 125 kg trunk along the floor with an applied force of 638 N at an angle of 24.3°. The…
A:
Q: The figure shows a top-down view of three forces applied to a box. Together, these forces drag the…
A: The total work done on the box is, W=W1+W2+W3=F1dcosθ1+F2dcosθ2+F3dcosθ3
Q: A block witha mass of 4 kg is pulled across a horizontal surface at constant speed by a horizontally…
A:
Q: 1. Emma pushes a 45.0kg box across a level floor with an applied force of 155N [30° above…
A:
Q: Problem 1: A block of mass 10 kg is being pulled in a straight line alone the ground by a 60 N force…
A: Given Mass of object, M = 10 kg Force, F = 60 N Angle = 45 degree Coefficient of kinetic…
Q: In the attached image, the mass is 3.20 kg, and theta=37 degrees. The surface does have friction,…
A: Given:Mass of the box = 3.2 kgTheta = 37 degreesStatic coefficient=0.45Kinetic…
Q: A car (m = 1000. kg) is moving uphill at a constant speed. The maximum power output is 140 hp…
A: Write the given values with the suitable variables. m=1000 kgP=140 hp=140×746 W=104440 Wμ=0.6θ=37°…
Q: A sled plus passenger with total mass 50 kg is pulled 20 m across the snow (uk = 0.20) at constant…
A:
Q: You push a file cabinet up a frictionless ramp tilted at 10°with horizontal. The file cabinet has a…
A:
Q: Work, Energy and Power 10. Sheila has just arrived at the airport and is dragging her suitcase to…
A: As per guidelines we are allowed to answer only first question. if question are not related to each…
Susan's 13.0 kg baby brother Paul sits on a mat. Susan pulls the mat across the floor using a rope that is angled 30∘ above the floor. The tension is a constant 28.0 N and the coefficient of friction is 0.170.
Trending now
This is a popular solution!
Step by step
Solved in 3 steps with 3 images
- What is the Net Work ? Wnet = Fnet d cos Θ Cart Mass, mc . 284 kg Angle, theta 49 degrees Distance, d . 75 m Suspended Mass, ms . 320 kg Velocity 1 1.48 m/s Velocity 2 1.43 m/s Velocity 3 1.487 m/s Average Velocity 1.466 m/s Kinetic Energy . 305 JA crate with mass m = 33.3 kg being pushed up an incline that makes an angle φ = 22.7 degrees with horizontal. The pushing force is horizontal, with magnitude P, and the coefficient of kinetic friction between the crate and the incline is μ = 0.358. Consider the work done on the crate as it moves a distance d = 5.32 m at constant speed. a. What is work done by the pushing force, in joules? b. What is the work done by friction, in joules? c. What is the work done by gravity, in joules? d. What is the net work, in joules?6. Please answer
- A 2,200-kg pile driver is used to drive a steel I-beam into the ground. The pile driver falls 4.60 m before coming into contact with the top of the beam, and it drives the beam 15.0 cm farther into the ground as it comes to rest. Using energy considerations, calculate the average force the beam exerts on the pile driver while the pile driver is brought to rest. 588925.42 magnitude Write an expression for the work done by all of the forces acting on the beam as it moves into the ground and relate that work to the change in energy of the pile driver in order to find the force that the beam exerts on the pile driver. NAn Olympic weightlifter lifts a 2200 N barbell a distance of 2.2 m. This takes 1.80 s. a. Find the work done by the weightlifter on the barbell in Joules.b. Find the power output of the weightlifter in Watts and in horsepower (hp). Note: 1 hp = 746 WTwo blocks are connected by a very light string passing over a massless and frictionless pulley (Figure 1). Traveling at constant speed, the 20.0 N block moves 95.0 cm to the right and the 12.0 N block moves 95.0 cm downward. Figure 20.0 N 1 of 1 12.0 N Part A During this process, how much work is done on the 12.0 N block by gravity? Express your answer with the appropriate units. Ww, 12.0 N = Submit Part B Value WT, 12.0 N = Request Answer During this process, how much work is done on the 12.0 N block by the tension in the string? Express your answer with the appropriate units. Value Units Submit Request Answer ? Units ?
- A block with a mass of 39.0 kg is pushed with a horizontal force of 150 N. The block moves at a constant speed across a level, rough plane a distance of 6.75 m. What is the work done (in J) by the 150 N force? J? What is the coefficient of kinetic friction between the block and the plane?a.) A student is riding a bicycle at a constant speed of 6.0 m/s on a level road. The mass of the student and bicycle together is 80 kg. Assume the friction and drag is 35 N. What is the student's output power, in Watts? b.) A student is riding a bicycle at a constant speed of 6.0 m/s on a 7.0º hill. The mass of the student and bicycle together is 80 kg. Assume the friction and drag is 35 N. What is the student's output power, in Watts?A sledder has 500 J of potential energy and 230 J of kinetic energy at one point on a steep hill. How much kinetic energy will the sledder have at the bottom of the hill? (Assume negligible air resistance and friction.) b. As the sledder goes down the hill and picks up speed will their potential and kinetic energy increase or decrease.
- A 6.30 kg block is pushed 9.40 m up a smooth 37.0 º inclined plane by a horizontal force of 76.0 N. If the initial speed of the block is 3.30 m/s up the plane. Calculate the initial kinetic energy of the block. Kinitial Submit Part B Submit Calculate the work done by the 76.0 N force. Part C We = VALO Requect Antwer Calculate the work done by gravity. Part D Requeci AntWar Submit Requect Answer WN = Calculate the work done by the normal force. + 10 ca 1? 17A student pushes a 0.40 kg box up a 30° inclined plane at a constant speed of 1.2 m/s. The student performs 5.0 J of work and the block moves a distance s along the incline before he stops pushing the box. The frictional force acting on the box is 0.9ON. Determine the value of s. Ending position Starting 30° position O 1.16 m O 1.65 m O 1.75 m O 1.85 m O 1.04 mA box is pulled 2.0 meters along a rough surface at constant velocity using 100 N force inclined at 30° above the horizontal. a.If the force applied, Fa is doubled but the frictional force remains the same (this is unlikely to occur in practice since normal force changes), will the net work be the same? b. Is Fa is doubled with the frictional force unchanged how much kinetic energy would the block have after being pulled 2.0 m?