When a father takes his daughter out for a spin in a stroller, he exerts a force F>with a magnitude of 44.0 N at an angleof 32.0° below the horizontal, as shown in the sketch. The stroller and child together have a mass m = 22.7 kg. (a) Howmuch work does the father do on the stroller when he pushes it through a horizontal distance d = 1.13 m? (b) If theinitial speed of the stroller is vi = 1.37 m>s, what is its final speed? (Assume the stroller rolls with negligible friction.)

Q: As part of a charity fund raising drive, a runner with mass 50.0 kg runs up the stairs to the top of…

A: Mass of the runner=50kgHeight=443macceleartion due gravity=g=9.8m/s2Increase in potential…

Q: A 2.5 kg mass is initially at rest on a horizontal surface. An applied force acts in the +x…

A: Given, Mass 'm' = 2.5 kg displacement 'd' = 1.5 m  final speed 'v' = 4 m /s at distance of 150 m…

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,

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A: Work done by force F on spring is W=12kx2…

Q: A 186-kg crate is being pushed across a horizontal floor by a force P that makes an angle of 43.6 °…

A:

Q: A block of mass 2.50 kg is pulled 2.20 m along a frictionless horizontal table by aconstant 16.0 N…

A: The figure is shown below:

Q: A toad with mass of 188 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: Given: Toad's mass, m=188 g=0.188 kg Toad's jumping angle w.r.t horizontal, θ=35° Initial velocity,…

Q: A person uses a motorized bicycle to climb a road inclined 30 ° above the horizontal with constant…

A: Mass of the person +bicycle M=102 kg Angle of inclination θ=300 Displacement of the person d=86 m…

Q: The system shown in Figure  is used to lift an object of mass m = 76.0 kg. A constant downward force…

A: Given data: The mass of object is m=76 kg. The object is raised by d=1.8 m.

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: An object of mass 0.125 kg that is attached to a string spins on a frictionless table m = cm with…

A: The centripetal force acting on the object is, F=mv2r=0.125 kg85 cm/s0.01 m1 cm240 cm0.01 m1…

Q: Suppose that as part of their training, the football players of MSU went up a stair in 66 s. The…

A:

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 350 kg sofa slides 2.5 m down a 30° incline and who is pushing back on it parallel to the incline…

A: Given:- The mass of the sofa m = 350 kg  The sliding length L = 2.5 m  The angle of the incline is…

Q: A 5.0 kg object is moving forward with an applied force of 10.0 N right, displacing 5.0 m right. The…

A: Total work done due to force of gravity on the object is ZERO. NO WORK IS DONE BY FORCE OF GRAVITY…

Q: A single force acts on a I kg panticle-like object in such a way that the position of the object as…

A:

Q: What average mechanical power (in W) must a 61.5 kg mountain climber generate to climb to the summit…

A: The mechanical power of the climber can be found as, Here, W and t represent the work-done and…

Q: A big man is towing a large box with a cord that makes an angle of 25 degreeswith the horizontal.The…

A: Force applied on box = 100 N displacement of box = 2 meter angle between force and displacement…

Q: A force F = (10.0î + 9.0ĵ + 12.0k) kN acts on a small object of mass 95 g. If the displacement of…

A:

Q: lock of mass m = 2.9 kg is placed on a rough incline surface making an angle θ = 13.8°  with…

A:

Q: a 1400 kg block of granite is pulled up an incline at a constant speed of 1.34 m/s by a cable and…

A:

Q: Imagine that a team of engineers wants to determine how a new car will perform on hills. The car has…

A:

Q: A 0.7-kg object moves in a horizontal circular track with a radius of 3.7m. An external force of 1.2…

A: r=Radius=3.7 mm=Mass of object=0.7 kgF=Force=1.2 N

Q: A force of 40 Newtons is applied to an object at an angle of 37 degrees from the horizon, displacing…

A:

Q: As a part of a charity fund-raising drive, a marathon runner with mass of 75 kg runs up the stairs…

A: Work done required for mass m to climb height h will be against gravity. Wreq = mgh we Also know,…

Q: A block of mass m = 3.1 kg is placed on a rough incline surface making an angle e = 13.5. with…

A: SOlution: Given that m = 3.1 kg angle = 13.5 degree coefficient of kinetic friction = 0.29

Q: In Figure, a block of ice slides down a frictionless ramp at angle 0 = 52° while an ice worker pulls…

A:

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: The drawing shows a boat being pulled by two locomotives through a canal of length 3.50 km. The…

A:

Q: An object is sliding down a frictionless incline of angle 48.8 degree. Given the potential energy of…

A: Given info: Angle of inclination, θ=48.8° Potential energy of the object at the top, P.E=7.73 J…

Q: A cable exerts a constant upward tension of magnitude 2.26 ✕ 104 N on a 2.00 ✕ 103 kg elevator as it…

A: Write the equation for work done

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 accelerates uniformly from rest to 24.2 m/s in 8.46 s along a level stretch of road. Ignoring…

A: The initial velocity of car = 0 m/s.The final velocity = 24.2 m/s.The time taken  by the car to…

Q: The only two forces acting on a 2-kg particle are: F = (3î - 4j) N and F,. The particle moves in the…

A:

Q: A block of mass m =5 kg is pushed along a rough horizontal table over a distance d=2.8 m by a…

A:

Q: What is the work done by weight component at an inclination angle of 30 degrees, given that the mass…

A: In this question we have to find the work done by weight component at an inclination angle of 30…

Q: The horizontal and vertical velocity components of a 2.0 Kg projectile are Vh = 30 m/s and Vv = 40…

A:

Q: What average mechanical power (in W) must a 60.0 kg mountain climber generate to climb to the summit…

A: solution as

Q: A machine carries a 3.5 kg package from an initial position of d, = (0.50 m)i + (0.75 m)j + (0.20…

A:

Q: What average mechanical power (in W) must a 61.5 kg mountain climber generate to climb to the summit…

A: According to work energy theorem, the work required to climb the hill is,Substitute the values,

Q: What is the average power output of a 55.0 kg woman who does 50 deep knee bends in which her center…

A: The expression for the output power is,

Q: Suppose the ski patrol lowers a rescue sled carrying an injured skiier, with a combined mass of 77.5…

A: In this question we have to answer how much work, in joules, is done by the rope on the sled over…

Q: What is the power output for a 60.0 kg person who runs up a 3.00 m high flight of stairs in 3.50 s,…

A:

Q: A snowboarder and her board (combined mass 40.0 kgkg) are moving at 9.30 m/sm/s at the bottom of a…

A: Solution: Given that total mass m = 40 kg speed v = 9.3 m/s height achieved due to friction h' = 3.5…

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.…