A skier starts at rest atop a ski slope that has a slope of exactly 37.0∘.37.0∘. Her total mass is 73.0 kg.73.0 kg. Approximating the slope to be frictionless and assuming that the skier skis straight down the slope, what will her speed ?v be after 8.00 s?

Q: A 747 jetliner lands and begins to slow to a stop as it moves along the runway. If its mass is…

A: According to the Newton’s second law, F=maa=Fm=4.3×105 N3.56×105 kg=1.208 m/s2

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A: Given: Mass of the hammer: m = 0.850 kg The initial speed of the hammer: vi=8.00 m/s The final speed…

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A: Component of velocities along unit vectors

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A: In an elastic collision, momentum is conserved before and after collision,

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A:

Q: A 33,000 kg freight car is coasting at 0.950 m/s with negligible friction under a hopper that dumps…

A: The mass of freight car, m₁ = 33,000 kg   Velocity of freight car, u₁ = 0.950 m/s   Mass of hopper,…

Q: An astronaut on a spacewalk becomes untethered from the ISS. In order to propel herself back toward…

A: (a) The hammer must be thrown in the direction of astronaut's drift. This implies the hammer must be…

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A:

Q: In the figure, two particles are launched from the origin of the coordinate system at time t = 0.…

A: Solution: (a) As particle 2 always stays directly above particle 1 during the flight, it means that…

Q: A 0.550 kg hammer is moving horizontally at 5.00 m/s when it strikes a nail and comes to rest after…

A:

Q: Which of the following bodies has THE LARGEST kinetic energy? O An object with mass M and speed 4V O…

A: Kinetic energy of an object is given by- KE=12×mass×speed2

Q: done in the toy rocket when it is 13 meters high. 15.0 10.05 re 5.00- F e, N 0.00- 4.00 8.00 120…

A:

Q: In the figure, two particles are launched from the origin of the coordinate system at time t 0.…

A: Centre of mass of system of particles is the point representing the mean position of the matter  in…

Q: Two forces, F, = (2.70î – 3.40j) N and F, = (3.70î – 7.80j) N, act on a particle of mass 2.10 kg…

A: Given The one force is F1=2.70i-3.40j. The second force is F2=3.70i-7.80j. The mass of the particle…

Q: A 30 gram bullet moving horizontally with a velocity of 450 m/s gets imbedded in a 10 kg block…

A: Given data:  Mass of bullet (m) = 30 g = 0.030 kg Velocity of bullet (v) = 450 m/s Mass of block…

Q: In the potential energy experiment. If the kinetic energy of the system composed of masses mj and m2…

A: Given: The kinetic energy is 0.786 J. The speed is 1.39 m/s. The mass m2 is 110 g.

Q: A 0.300 kg hammer is moving horizontally at 6.00 m/s when it strikes a nail and comes to rest after…

A: Mass of the hammer,  m= 0.300 kg Speed of the hammer initially, u = 6.00 m/s Speed of the hammer as…

Q: stationary soccer ball of mass m = 0.88 kg is booted with a constant force of F = 21 N. The woman's…

A:

Q: A 31,000 kg freight car is coasting at 0.550 m/s with negligible friction under a hopper that dumps…

A:

Q: A skater of mass m = 50.0 kg is observed to have a velocity v = 4.0 m/s while she is at an elevation…

A: Given Data : The mass of the skater is given as m = 50 kg. The velocity of the skater at the…

Q: In the figure m1 = 0.400 kg and m2 = 0.100 kg. The system is released from rest and m1 travels…

A:

Q: A train with mass of 2000 kg coasts on a frictionless track with a speed of 50 m/ s . How large a…

A: Mass of train: m = 2000 kg Initial speed of train: u = 50 m/s Final speed of train: v = 0 m/s…

Q: Questions 5.-6. refer to a glancing collision between two balls with the following initial and final…

A: We will use conservation of momentum here. About x axis: 3.5 x 5 = 3.5x2+4.5 x v2x V2x = 2.33 m/s Vx…

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A:

Q: Att = 0, force F-=(6.30i +6.10j +3.50k)N begins to act on a 2.90 kg particle with an initial speed…

A: Given: Force F-=(6.30i +6.10j +3.50k)N begins to act on a 2.90 kg particle with an initial speed of…

Q: e line of action of the stand-alone resultant force R. The couple is positive if countercl 2350 Ib…

A: Given A bent bar   which supported at point A

Q: If a body is moving with constant speed, then it's momentum is zero. Select one: O True O False

A: Introduction: When an object is moving with constant velocity then the net force on the object will…

Q: A rocket moving in space, far from all other objects, has a speed of 3.0 × 10ª m/s relative to the…

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Q: ng initially at 2.95 m/s on rough horizontal ice comes to rest uniformly in 4.00 s

A: Ans is 47.2 N

Q: In the figure, two particles are launched from the origin of the coordinate system at time t = 0.…

A: GIVEN: mass of particle m1 = 3.1g  velocity of particle = 11.8m/s mass of particle m2 = 1.10g…

Q: A 50 kN truck travelling with a speed of 50 kph hits a lamp post and is brought to rest in 0.1 secs.…

A: The weight of the truck, W=50 kN=50000 N   The mass of the truck, m=Wg=50000 N9.81 m/s2=5096.84 kg

Q: Suppose we have a dense particle with mass 7 kg which follows the path r(t)=⟨sin(8t),cos(2t),2t9/2⟩…

A:

Q: A 2.0 kg object moving to the right with speed 0.50 ms experiences the force is shown. What are the…

A: Answer - Option ( d )

Q: In the potential energy experiment. If the kinetic energy of the system composed of masses m, and m2…

A: The expression for the kinetic energy is written as, Here, m and v represent the mass and the…

Q: A 400 kg rocket sled is coasting at 20 m/s. It then turns on its rocket engines for 4.0 s, with a…

A: Given :  Mass (m) = 400kg; Initial speed ( Vi ) = 20 m/s; Time ( t ) = 4 s; Thrust = 800 N;

Q: A 250-kg flatcar 23 m long is moving with a speed of 7.0 m/s along horizontal frictionless rails. A…

A: Given information:Mass of the flat car, M = 250 kg Mass of the worker, m = 95 kgThe velocity of the…

Q: A train car, initially traveling at 40 m/s, approaches 3 identical coupled train cars, which are…

A: Conservation of momentum: The total momentum of the cars before and after the collision is equal.…

Q: Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are…

A: Conservation of momentum is used to find final velocity when two train cars bumped into one another…

Q: A 0.750 kg hammer is moving horizontally at 4.50 m/s when it strikes a nail and comes to rest after…

A:

Q: A ball moving with a speed of 9m/s strikes an identical stationary ball such that after collision,…

A: Given data: Velocity of ball is v0=9 m/s. Direction of each ball is θ=30°. Balls are identical…

Q: 2. After the box in the figure has moved 3 meters from rest, the constant force P = 600 N is…

A:

Q: A mass m7=3.6kg sliding with a speed of v1=6.9m/s on a horizontal floor collides with another mass…

A: