Two toboggans (with riders) of the same mass are at rest ontop of a steep hill. As they slide down the hill, toboggan Atakes a straight path down the slope while toboggan B windsback and forth along a more gently sloping path. Toboggan Amakes the trip in half the time of toboggan B. (a) Comparethe work done by gravity on each toboggan. (b) Compare theaverage power delivered by gravity on the two toboggans.

Q: A poor guy pulls a 10-kg luggage along a level boulevard for 5 m by exerting a force of 35N at an…

A: Given data: Mass of luggage is, m=10 kg. Distance travelled is, s=5 m. Magnitude of force is, F=35…

Q: A block of 3.00 Kg slides down a frictionless inclined plane that forms 200 with the horizontal. If…

A:

Q: Bonny Blair of the United States set a world record in speed skating when she skated 5.00 x 10^2 m…

A: Kinetic energy is defined as energy due to virtue of its motion. Kinetic energy =12mv2 GIVEN : Mass…

Q: a block with mass m=20 kg pulled on horizontal surface , bulled by external force by 1000 N as shown…

A: Frictional force=μmg where μ=coefficient of friction m=mass of body Work done by force=F.X where…

Q: As a snowboarder descends a mountain slope, gravity, the normal force, and friction combine to exert…

A:

Q: A force F = (4xi-3y2j)Nacts on a particle, the particle moves along the x-axis from x= 1 to x = 4m.…

A: Write the expression of the force vector on a particle.   F=4xi-3y2j   Write the expression of the…

Q: Starting a race, a 68.2-kg sprinter runs the first 7.04 m in 1.60 s, starting from rest and…

A: Given: The mass (m) of the sprinter is 68.2 Kg. The distance (S) covered by the sprinter is 7.04 m.…

Q: In the figure, a constant force Fa of magnitude 83.0 N is applied to a 3.0 kg shoe box at angle o =…

A: Given data F=83 Nϕ=530h=0.35

Q: C10T.7 Aperson who exerts a 100-N force horizontally in the +x direction on a wall for 10 minutes…

A: Consider if the force has a component in the same direction to the displacement of the object, then…

Q: Spiderman, whose mass is 80.0 kg, is dangling on the free end on the 12.0-m long rope, the other end…

A:

Q: Is it possible to increase the kinetic energy without the application of external force?

A: yes the kinetic energy will increase without applying any external force. for example, when we kept…

Q: If the force and length traveled by the objects are given as scalar while the angle between them is…

A: Given: The force and traveled distance in scalar form. The angle between force and displacement.…

Q: A cord is used to vertically lower an initially stationary block of mass M = 20 kg at a constant…

A: mass, m  = 20 kg  downward acceleration, a = g/4  distance, d = 1.5 m

Q: Find the work done by 45N force in pulling the suitcase at an angle of 50d egrees with respect to…

A:

Q: Find the work done by a force of constant magnitude F=0,1KN.If the displacement of the body is…

A: Given data: Force, F=0.1 kN = 100 N Displacement, r=100 mm =100×10-3 m = 0.1 m Angle between…

Q: i. A 5.0-kg block is pushed 3.0 m up a vertical wall with con- stant speed by a constant force of…

A: Given  Mass of block = 5.0 kg  Angle =30°  coefficient of friction=u= 0.3    Displacement =d= 3.0m…

Q: A 10 kg mass is released from rest from the top of a 2 m long ramp, inclined at 30°. The speed of…

A: 7) work done by the friction = final kinetic energy - initial potential energy W = (1/2)(10)(2)2 -…

Q: find the work done by the force f=y2i+x3j,where force is measured in newtons ,in moving an object…

A:

Q: A 10N horizontal force is exerted on a 100kg object that slides on a frictionless, horizontal…

A: First method: According to the Newton’s second law, the acceleration of the object is, F=maa=Fm=10…

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: One species of Darwin’s finch, Geospiza magnirostris, can exert a force of 217 N with its beakas it…

A:

Q: What is the kinetic energy (in J) of the block when it is moving at 4.00 m/s?  ______J   Next, let's…

A: Here, Let the initial velocity vi = 4m/s to the right mass of block, m = 5kg Force, F = 11N…

Q: A force of 5i + j + 2k N displaced a body from a position of i + j + km to 2i + 4j + 6k m. How much…

A: Given, Force  F = 5i + j + 2k N  Displacement  d = r2 - r1   where r1 and r2 are position vectors d…

Q: A mass of 47 kg is moving horizontally as a force of 190 N, directed at 25° below the horizontal, is…

A:

Q: A weight lifter lifts a 380 N set of weights from ground level to a position over his head, a…

A: Given data: The amount of weight lifted is L=380 N. The height of weight lift is h=2.10 m.   The…

Q: A force of 12 Ib is required to hold a spring stretched 2 in. beyond its natural length. How much…

A:

Q: To clean a floor, a janitor pushes on a mophandle with a force of 50.0 N. (a) If the mop handle is…

A:

Q: A 4000-kg elevator starts from rest accelerates uniformly to a constant speed of 2.0 m/s and…

A: The potential energy of a body is given by PE = mgh, where m = the mass of the body g = acceleration…

Q: See figure below. Theta = 55 degrees. The man's mass m=80kg. Coefficient of kinetic friction between…

A: Given, Angle with vertical, Mass of man, Coefficient of kinetic friction, Height, To find, Work…

Q: "A 4.00-kg box of fruit slides 8.0 m down a ramp, inclined at 30.0e from the horizontal. If the box…

A:

Q: A baseball of mass 350 g is hit at home plate with a speed of 50 m/s. When it lands in a seat in the…

A:

Q: The force F3,  13.88 N, acts on the block at an angle of 155.98 degrees.  If the block moves to the…

A: Here, the work done by F3 can be given as The minus sign indicates that the work done by F3 and the…

Q: F = (2ry – 3)î + x²j, (0, 1) a (1, 0}

A: A force F is given and the work done in moving along three different paths a, b and c is being…

Q: A force of 17 Ib is required to hold a spring stretched 3 in. beyond its natural length. How much…

A:

Q: A truck travels uphill with constant velocity on a highway witha 7.0° slope. A 50. - kg package sits…

A: a)According to work energy theorem, work done is obtained from change in kinetic energy. Since the…

Q: A skier of mass 77 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to…

A: Distance for which he was pulled,d= 55m Angle of slope with horizontal= 30°

Q: he work done by a conservative force around a closed path is nonzero.  T  F ??

A: A conservative force is a force done in moving a particle from one point to another, such that the…

Q: A 0.14-kg pinecone falls 16 m to the ground,where it lands with a speed of 13 m>s. (a) With what…

A:

Q: A new record for runningthe stairs of the Empire State Building was set on February 4, 2003.The 86…

A: The total height gained by the runner to run 1576 steps is:

Q: While training for breeding season, a 380 gram male squirrel does 32 pushups in a minute, displacing…

A: Given: m = 380 g = 0.38 kg  number of push ups, n = 32  height, h = 8.5 cm = 0.085  m

Q: A 10 kg block is pushed with a constant external force of 10 Newtons horizontally on a floor with a…

A:

Q: When you apply force F = 273N to the right to mave a box by the distance 4.2 m to the right, find…

A: Given Force =273 N  Displaced distance d 4.2m

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: how much work is done on a cart by a force F=(10i+5j)kN that causes a displacement of d=(2i+0j)m?

A: The work done is given by  W =  F→ . d→ where, F is the force vector and d is the displacement…