A student wearing frictionless roller skates on a horizontal surface is pushed by a friend with a constant force of 52 N. How far must the student be pushed, starting from rest, so that her final kinetic energy is 345 J?

Q: 2. A boy pushes on a pig with a force F = 490 i + 230j N, giving the pig a displacement d = 1.77i+…

A: Given-   Force F=490 i+230 j NDisplacement d=1.77i+1.90j m

Q: A truck is towing a broken-down car via a horizontal cable for 360 m along a road. If the tension on…

A: Tension is a pulling force acting at the ends of a string or cable. Work done is the energy imparted…

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: You want to drop a ball of weight 10.0 N into free fall from rest from a certain height above the…

A: The weight of the ball,

Q: A 4.23 kg bundle starts up a 22.4° incline with 103 J of kinetic energy. How far will it slide up…

A: The expression from work energy theorem,

Q: A horizontal force F is applied to move a 6kg carton across the floor. If the carton starts from…

A: Mass of carton (m) = 6 kg Applied force = F Initial speed (u) = 0 mstime (t) = 3 seconds Final speed…

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: .An advertisement claims that a certain 1300 kg car can accelerate from rest to a speed of 25 m/s in…

A: Please see the answer below

Q: 20. A 0.58 kg box is pulled with 70 N of force at an angle of 150 above the horizontal across a flat…

A: Given: m = 0.58 kg, F = 70 N, θ = 15°, s = 17 m

Q: What average power does a 1,565 kg car need to go from 0 to 12.6 m/s in 6.86 seconds? Assume a…

A:

Q: If a 50 kg object initially at rest is displaced 25 m by a constant net force of 600 N in the…

A: Given: Mass of the object, m = 50 kg Displacement, S = 25 m  Force, F = 600 N  Initial velocity of…

Q: A 5.0-kg cart is moving horizontally at 4.0 m/s. In order to change its speed to 9.0 m/s, the net…

A:

Q: A car of mass 1200 kg travels along a horizontal road at a speed of 10 ms'. At the time it begins to…

A: GIVEN THAT    m =  1200 kg      speed = 10 m/s      acceleration = 0.2 m/s2    resistive force = 160…

Q: A shopper in a supermarket pushes a trolley with a force of 30N directed at an angle of 25° downward…

A: Given : F = 30 N θ = 25° d = 40 m

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

A:

Q: "A toy rocket, weighing 10 N, blasts straight up from ground level with a kinetic energy of 40 J. At…

A: GivenWeight of the rocket = 10 kinetic energy of the rocket at ground level, K = 40 Jtotal…

Q: A car with a mass of 900.0 kg climbs a 20.00° incline at a steady speed of 60.00 km/hr. If the total…

A: The steady speed of a car is, v=60 km/hr=16.67 m/s The total resistive or dissipative force acting…

Q: A toy train accelerates from rest to 0.62 m / s in 21 ms. If the mass of the train is 875 g, what is…

A: ACCELERATION  OF TARIN a = 0.062 / 21 X 10-3 m / s2 = 2.95 m/ s2 mass = 0.857 kg v= 0.62 m/s power =…

Q: A fully loaded, slow-moving freight elevator has a cab with a total mass of 1600 kg, which is…

A: Given:-         Total mass  M=1600 kg        Distance to cover  d=39 m        Time taken  t=2.2…

Q: A 40.0 kg jogger runs up the slope described in the fiqure. She maintains a constant speed of 4.00…

A: Given  Mass of jogger(m) = 40Kg Speed (s) = 4m/s

Q: The coefficient of kinetic friction between a crate and the floor is 0.50. If the crate has a mass…

A: Given: The coefficient of kinetic friction (μk) between the crate and the floor is 0.50. The mass…

Q: A 1.00 kg block starts from rest at the top of a 20.0 m long 30.0 degree incline. Its kinetic energy…

A: Given:Mass of block, m = 1 kgIncline angle, θ = 30°Kinetic energy, K.E = 98 J

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: A 1400 kg car accelerates from 5 m/s to 10 m/s. The net work done by the car is VI V2 500 kJ 200 kJ…

A: Given: The mass (m) of the car is 1400 Kg. The initial velocity (u) of the car is 5 m/s. The final…

Q: How much power is required to lift a heavy solid concrete beam with mass 60.21 kg upward with a…

A:

Q: A 29-kg child starts from rest and slides down a slide that is 3.6 m high. At the bottom of the…

A: Given data- mass m=29 kg, h=3.6 m, initial velocity vi=0 m/s rest, final velocity vf=1.35 m/s

Q: A soccer player strikes a 428 gram ball with an initial velocity of 27.4 m/s. The ball strikes the…

A:

Q: A roller coaster cart of mass m = 241 kg starts stationary at point A, where h1 = 39.4 m and a while…

A: The potential energy of the car at A relative to the ground is given by, UA=mgh1

Q: A 710 kg car is moving on level ground at a constant speed of 23 m/s. It is subject to a drag force…

A: Given data:  Force (F) = 500 N Speed (v) = 23 m/s Required: The power (P)

Q: A car of wheat weight 330 kg . To what height should it be raised so that potential energy is 8860 J…

A: Given value--- mass = 330 kg. potential energy = 8860 J. g = 9.8 m/s2.  We have to find---…

Q: Starting from rest, a 60.0 kg student takes 4.0 s to run up a 3.0 m high flight of stairs. On…

A:

Q: Please show work

A: Given,

Q: A rare and valuable antique chest is being moved into a truck using a 3.000 m long ramp. The weight…

A:

Q: How far must you stretch a spring with k = 1000 N/m to store 200 J of energy?

A: It is given that,

Q: Without pedaling, the rider rides down a 3.0% slope with constant speed of 7.0 m/s. With how much…

A: Slope = 3% therefore, θ = Tan-1(0.03) = 1.718oV = 7 msmass (m) = 80 kg

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

A: The correct option is (a).  i.e   ~  7.2m

Q: A car of mass 1500 Kg can accelerate from rest to a speed of 20 m/s in a time of 10 sec. Ignoring…

A: solution is given as

Q: A truck has towed a car to an auto mechanic shop that is 150m away from where it was parked with a…

A: Given data: Displacement (d) = 150 m Force (F) = 2250 N Angle (θ) = 35° Required: Work done (W)

Q: An advertisement claims that a 1000 kg car can accelerate from rest to a speed of 20 m/s in a time…

A: mass = 1000kg v1= 0m/s;    v2=20m/s t= 5sec. K.E1= 0  (car starts from rest) K.E2= (1/2)* 1000*…

Q: How much work must you do to push a 13 kgkg block of steel across a steel table at a steady speed of…

A: Given: The mass of the block is 13 kg. The constant speed of the object is 1.3 m/s. The coefficient…

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: A 33.00 kg block starts from rest at the top of a 23.0 m long 30.0° incline. Its kinetic energy at…

A: Working formula Work done by friction=Potential energy of the block at the top - Kinetic energy of…

Q: A bag of wheat weight 320 kg. To what height should it be raised so that potential energy is 8220 J?…

A: Given:  Mass (m) = 320 kg Potential Energy (U) = 8220 J Acceleration due to gravity (g) = 9.8 m/s2…

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

A: The given data are: F=45 NKf=352 JKi=0 J Here, Ki denotes the initial kinetic energy, Kf denotes the…

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…

A:

Q: A object 2 kg is moving in one dimension with a velocity given by  V(t)= 1 / 2 t^2  at t=4 s.…

A:

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: A truck has a gross weight of 1.0 x 106 N. Assuming that the concrete road has a coefficient of…

A:

Q: A bag of wheat weighs 200 kg. To what height should it be raised so that potential energy is 9800 J?…

A: Given data:  Mass (m) = 200 kg Potential energy (U) = 9800 J Acceleration due to gravity (g) = 9.8…

Q: "A toy rocket, weighing 10 N, blasts straight up from ground level with a kinetic energy of 40 J. At…

A:

Q: A 1200 N crate rests on the floor. How much work is required to move it at a constant speed (a) 5.0…

A:

Q: A farmer uses a tractor to pull a 110 kg bale of hay up a 15∘ incline to the barn at a steady 5.0…

A: The components of weight into the perpendicular and parallel to the slope are Fparallel=mgsinθ=110…

Q: A concrete block is pulled 7.0 m across a frictionless surface by means of a rope. The tension in…

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

Q: Suppose the ski patrol lowers a rescue sled carrying an injured skiier, with a combined mass of 92.5…

A: Work done on an object by a force F is given as- W=F.d=Fd cosθ where,d is the displacemnt of objectθ…

Q: An archer pulls a bow string back 0.40 m by exerting a force that increases linearly from zero to…

A: Work done is defined as product of force and displacement. Mathematically, W=F.S F is force, S  is…

Q: A medical student pushes a 30-kg carton of books across the floor of her dormitory at constant speed…

A:

Q: A woman uses a pulley and a rope to raise a 20 kg weight to a height of 2 m. If it takes 4 s to do…

A: mass, m = 20 kg  height, h = 2 m  time, t = 4s  The formula for energy is  E = m g h  The power is…