Before doing any calculations, can you assume that the total momentum of the actor is conserved at all times throughout the stunt? Explain your answer briefly but clearly. |Before doing any calculations, can you assume that the total mechanical energy (kinetic + potential) of the actor is conserved at all times throughout the stunt? Explain your answer briefly but clearly. If the magnitude of the maximum acceleration of the actor is to be equal to 6g, what is yf?
Q: A 111 kg seal at an amusement park slides from rest down a ramp into the pool below. The top of the…
A: mass of seal (m)= 111 kg Initial height (h) = 1.90 m θ = 26.5oInitial velocity (u) = 0 msfinal…
Q: A 5.00 x 105-kg subway train is brought to a stop from a speed of 0.600 m/s in 0.300 m by a large…
A: Mass of the trainInitial speedspring compressed to a distance
Q: 4
A: Assume that the mass of each sphere is m2, the distance between the center of mass and the spheres…
Q: If you have an object moving along a rough surface (one in which kinetic friction is a significant…
A:
Q: A potential energy function for a certain system is given by U;(x) = Cx? + Bx. The potential energy…
A:
Q: What does a physicist mean by "external" force? O An external force is one that can affect the…
A: External Force The first option is wrong, when an external force acts on the body then its…
Q: POP 2 Q21 2 You throw a baseball straight up, and because of air resistance some of the ball's…
A: Dear student, Since both questions are different as per guidelines we can author only first one…
Q: Part B What is the work W₁ done on the box by the normal force? Express your answers in joules to…
A:
Q: A 65.0 kg base runner begins his slide into second base when he is moving at a speed of 4 m/s. The…
A: (a) Mechanical energy lost by friction is equal to the change in kinetic energy ∆E=12m∆v2=1265.0 kg4…
Q: A net force along the x-axis that has x-component F, = -12.0 N+(0.300 N/m² )æ² is applied to a 4.50…
A:
Q: A 63-kg base runner begins his slide into second base when he is moving at a speed of 4.6 m/s. The…
A:
Q: Figure A www.m B wwwmmm C D -A-A042 A 1 of 1 m Wm Find the kinetic energy K of the block at the…
A:
Q: A 1.4 kg box moves back and forth on a horizontal frictionless surface between two different…
A:
Q: A 76-kg base runner begins his slide into second base when he is moving at a speed of 3.5 m/s. The…
A:
Q: Part G What is the period T ? Part H How much time t does the block take to travel from the point…
A: Given Consider a block of mass m on frictionless horizontal surface attached to a spring with force…
Q: When a 1984 Alfa Romeo Spider sports car accelerates at the maximum possible rate, its motion during…
A:
Q: 1) A 3.15-kg block is acted on by a 24.0-N force that acts at 37.0° below the horizontal, as shown…
A:
Q: Use the exact values you enter to make later calculations.The set up in the diagram below relates to…
A: (a)Find the change in potential energy for mass m1 moving down.
Q: A roller coaster cart of mass 139.0 kg is pushed against a launcher spring with spring constant…
A:
Q: A 77-kg base runner begins his slide into second base when he is moving at a speed of 3.1 m/s. The…
A: m = 77 kgvi = 3.1 m/svf = 0
Q: A heavy rock and a light rock are dropped from the same height and experience no significant air…
A:
Q: A stuntman dives off a 200 m tall pole into a bucket of water. His PE On top of the pole is 15000 J.…
A: From the law of conservation of energy, we know that, Total Kinetic Energy (KE) + Total Potential…
Q: ppose two drag cars race on parallel, straight-line tracks. The mass of car A is twice the mass of…
A: Given value--- mass of car A is twice of mass of car B. speed of car A is 1/4 of speed of car B.…
Q: A skier starts from rest at the top of a rictionless incline of height 20.0 m, as shown in the…
A: Given data as per question Friction between skis and snow =0.209 Calculation speed at bottom at…
Q: Part D Evaluate the final kinetic energy of the supply spacecraft if the tractor beam force had been…
A: Given that the tractor beam force is constant and equal to Fo, the kinetic energy (KE2) of the…
Q: If you have an object moving along a rough surface (one in which kinetic friction is a significant…
A: Given data: The kinetic friction is acting on the object Required: The kinetic energy is conserved…
Q: Particle A has mass m. Particle B has twice the mass of Particle A. The same constant force F acts…
A: According to the work-energy theorem, the amount of workdone on an object is equal to the change in…
Q: I Review | Constants A factory worker pushes a 30.0 kg crate a distance of 3.3 m along a level floor…
A: Given that: Mass of the crate m=30kg distance d=3.3m Angle θ=30° Coefficient of kinetic friction…
Q: Two identical 0.700 kg masses are pressed against opposite ends of a light spring of force constant…
A: Given Data : The spring constant of the spring is given as K=1.75 Ncm The mass of each mass is given…
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
- ► cube can slide without friction up and down a 30° slope. The ice cube is pressed against a spring at the bottom of the slope, compressing the spring 10 cm. The spring constant is 28 N/m. When the ice cube is released. what total distance will it travel up the slope before reversing direction? Express your answer with the appropriate units. As- Submit Part 8 Value Units → The ca cuce is replaced by a 44 g plastic cube whose coefficient of kinetic iction is 0.20. How far will the plastic cube travel up the slope? Express your answer with the appropriate units. ? Units ?K L water M A 5.10 kg mass attached to a spring is travelling at a speed v; at point K, as shown above. While it is falling it is also being pushed by a spring (k = 475.00 N/m) compressed by 1.60 m (at point K). The mass travels 1.60 m (between K and L) then hits a pool of water at point L where the water exerts an average force of 54.80 N [upwards]. At point L the spring is no longer pushing and begins to stretch (in other words, at point L, x=0). The mass eventually stops at point M. If the distance between L and M is 7.45 m, determine the initial velocity of the mass (v;). Enter an answer with three digits and in S.I. units.A baseball is thrown vertically upward and feels no air resistance. It reaches a maximum height and turns back downwards. As it is moving downwards O its gravitational potential energy is not conserved, buts its momentum is conserved. O both its momentum and its kinetic energy are conserved. O its momentum is not conserved, but its mechanical energy is conserved. O its kinetic energy is conserved, but its momentum is not conserved. O both its momentum and its mechanical energy are conserved.
- Particle A has mass m. Particle B has twice the mass of Particle A. The same constant force F acts on both particles for time At. Which particle has the larger kinetic energy? Ο ΕΑ> EΒ О ЕA < Ев EA = EB There is not enough information to tell.| A pendulum of mass m and length is initially at rest at an angle 9. The pendulum then swings down and collides elastically with a stationary block of mass M. The block slides along the surface and eventually stops when it encounters a rough patch of length |Ad. Assume that m = 1.7kg, L = 0.80m, 8 = 67, M = 2.8kg and Ad = 0.55m. a) Calculate the speed of the block immediately after the elastic collision. b) What is the coefficient of kinetic friction of the rough patch?A 5.60-kg block is set into motion up an inclined plane with an initial speed of v¡ = 7.60 m/s (see figure below). %3D The block comes to rest after traveling d = 3.00 m along the plane, which is inclined at an angle of 0 = 30.0° to the %3D horizontal. (a) For this motion, determine the change in the block's kinetic energy. We know an initial speed and a final speed. Are the other pieces of information relevant to this question? J (b) For this motion, determine the change in potential energy of the block-Earth system. 82.3 J (c) Determine the friction force exerted on the block (assumed to be constant). You appear to have correctly calculated the force using your incorrect results from parts (a) and (b). N (d) What is the coefficient of kinetic friction? You appear to have calculated the coefficient correctly using your incorrect result from part (c).
- Part E Evaluate the final kinetic energy of the supply spacecraft for the actual tractor beam force, F(x) = ax³ + ß. ► View Available Hint(s) μÅ KE₂ = Value Units1. A 10.0-kg block is pushed up a 30• inclined plane that is 10.0 m long starting from rest. The coefficient of kinetic friction between the block and the plane is uk = 0.20. What is the magnitude of the constant force required to move the block from the bottom of the plane to the top in 3.00 s?A 78-kg base runner begins his slide into second base when he is moving at a speed of 3.5 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base. (a) How much mechanical energy is lost due to friction acting on the runner? J(b) How far does he slide? m