a mother and her child are skiing together, and the mother is holding the end of a rope tied to the child's waist. They are moving at a speed of 7.2 kph on a gently sloping portion of the ski slope when the morher observes that they are approaching a steep descrnt. She pulls on the rope with an average force of 15 N. Knowing the coefficient of frivtion between the mother and the ground is 0.2, the mass of the mother is 62 kg and the angle of the rope does not change, determine the acceleration of the mother, the time reuired dor the mother's speed to be cut in half, and the distance traveled.

Q: A speedboat weighing 644 lbs is powered by a constant force of 40 lbs. Friction between the boat and…

A: w=644 lbswind resistance:Rw∝vRw=kv....1

Q: Assume that the force of a bow on an arrow behaves like the spring force. In aiming the arrow, an…

A:

Q: A 60.0 kg skier with an initial speed of 15 m/s coasts up a 2.50 m high rise as shown in the figure.…

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Q: In a circus performance, a monkey is strapped to a sled and both are given an initial speed of 4.0…

A: The free body diagram of the system is shown below.

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A:

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A: The height "h" of the highest point (in meters) reached by the skateboarder on the right side of the…

Q: Two blocks are connected by a light string that passesover a frictionless pulley as in Figure P5.38.…

A: Part (a) Since, the pulley is massless and frictionless. Hence, the tension (T) in both the side of…

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A:

Q: A block of mass M = 3.80 kg is launched with a speed of v = 5.98 m/s at the bottom of a sufficiently…

A: mass, m = 3.8 kg  velocity initial, v = 5.98 m/s  Angle, A = 14.8 degree  kinetic friction = 0.371

Q: A person is available to ski from the top of a snow mountain whose height is 10.0 m. Ignoring…

A: Since there are multiple questions posted, we will answer the first question for you. If you want…

Q: small block slides down a frictionless track whose shape is described by y = (x^2) /d for x0. The…

A: Given  At x =0, is given a push to left with an initial speed of 2.60 m/s.  So  Total energy at x=0…

Q: A 60-kg skier starts from rest from the top of a slope with the slope angle 30°. If the length of…

A: Calculate the total vertical height of the car from the base when the car is at the top. HT =…

Q: If a 1.6 kg object is initially at rest on a frictionless, horizontal surface and subjected to a…

A: Given data:  Mass (m) = 1.6 kg Initial velocity = 0 m/s Force (F) = 12.2 N Distance (d) = 3.99 m…

Q: An m=60 kg diver jumps off a diving board h=3 m above the water that acts like an ideal spring with…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

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A:

Q: A force on a particle is conservative if: "its work depends on the end points of the motion, not…

A: Force on a particle is conservative if the value of line integral is independent of the path between…

Q: If the skier coasts up the hill, what is his speed (in m/s) when he reaches the top plateau? Assume…

A: Energy can neither be created nor destroyed. It is simply converted from one form to another and the…

Q: A net force along the x-axis that has x-component Fx = −12.0N + (0.300N/m2)x2 is applied to a 5.00…

A:

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A:

Q: At what initial speed should a box of mass m be thrown parallel to the surface of the inclined plane…

A:

Q: A car of mass m = 1100 kg is traveling down a θ = 14 degree incline. When the car's speed is v0 = 13…

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A: The equation of motion is given by, v=u+at   (1) Here, v is the final velocity, u is the initial…

Q: A golf club strikes a 0.062-kg golf ball in order to launch it from the tee. For simplicity, assume…

A: Suppose a golf club hits a ball having mass m with the force F and the golf club is in contact with…

Q: mass m = 0.200 kg sits on a frictionless, horizontal air track, connected to a spring with force…

A: Givenm=0.2 kgk=5 N/mInitial stretched length, xi=0.1 mRelease from restInitial velocity ,…

Q: A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the…

A: GIVEN  d= 5.00 m t = 0.286 s The horizontal speed of the person at the end of the slide is given as…

Q: A 91 kg janitor wearing running shoes is running across an ice rink at a speed of 3.2 m/s. They try…

A:

Q: A toboggan reaches the foot of a hill at a speed of 4 m/s and coasts on level snow for 15 m before…

A: The kinetic energy relation is given in terms of velocity, and mass as Ek=12mv2

Q: Assume that the force of a bow on an arrow behaves like the spring force. In aiming the arrow, an…

A:

Q: If a 2.1 kg object is initially at rest on a frictionless, horizontal surface and subjected to a…

A:

Q: The graph shows how the force (in units of N) acting on a 4.00 kg particle varies with position. If…

A:

Q: A 4.0 g bullet leaves the muzzle of a riffle with a speed of 328 m/s. What force (assumed constant)…

A:

Q: An ice skater is at rest on top of a 10-meter high hill, inclined at a 30-degree angle. If he slides…

A: h=Height of at which the ice skater is=10 mθ=Angle of slope=30°μ=Coefficient of…

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A:

Q: 215 00% ledg ITS μ=0¬ ren's o -P 971.

A:

Q: In a circus performance, a monkey is strapped to a sled and both are given an initial speed of 5.14…

A:

Q: In a circus performance, a monkey is strapped to a sled and both are given an initial speed of 3.0…

A: The given values are, vi=3.0 m/sθ=21.0°m=16 kgμk=0.20

Q: a 1.75-kg block at rest on a ramp of height h.When the block is released, it slides without friction…

A: From conservation of energy, the required expression for the height is,

Q: A block is given an initial velocity of 5.00 m/s up a frictionless incline of angle of 20.0°. How…

A:

Q: A skier is initially moving at 12.9 m/s on level ground as they approach a hill that is angled…

A: Given: initial velocity of skier, u = 12.9 m/s angle of inclination, θ = 18.1°  distance traveled…

Q: A 6 kg block, initially moving 4 m/s, slides 2.5 m down a ramp that is inclined 20 degrees above…

A: Given data: Mass of block is, m=6 kg. Initial speed of block is, u=4 m/s. Distance covered during…

Q: A toad with mass of 280 g leaps into the air to catch a fly. If the toad's jump was at an angle of…

A: Given that mass of the toad and angle and also given the initial velocity. Then We have to determine…

Q: The package of mass M = 5 kg is released from rest at A which is h = 3 m above the ground. It slides…

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Q: A 34.2 kg block slides with a velocity of 10.22 m/s to the right on a frict figure above). The block…

A: Given:- The Block of mass m = 34.2 kg  The initial velocity of the block  v = 10.22 m/s  The height…

Q: A 60.0 kg skier with an initial speed of 13 m/s coasts up a 2.50 m high rise as shown in the figure.…

A: Write an expression using Newton’s second law of motion along the incline

Q: A 60.0 kg skier with an initial speed of 12.5 m/s coasts up a 2.50 m high rise as shown in the…

A: Given:Mass of the skier = 60 kgInitial speed of the skier = 12.5 m/sHeight of the ramp = 2.5…

Q: Packages having a mass of 4-kg are delivered from a conveyor to a ramp with a velocity of vo = 0.9…

A:

Q: A 97.49-kg skier with an initial speed of vi=34.93 m/s coasts up a H=11.75-m-high risel.  The slope…

A: Given,Mass of the skier, m = 97.49 kginitial speed, vi = 34.93 m/sheight, H = 11.75 mslope of the…

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.