When a hockey player makes a wrist shot, he applies a reasonably constant force to a puck for a distance of between 0.8 to 1.4 m. Explain why the work energy theorem may be used to analyse the resulting motion of the puck
Q: Using a real-world example that relates to your major area of sudy (Environmental Science), find at…
A:
Q: You have your textbook and pen with you while working on this exam. Assume the height of your…
A: Given Data : The height of the desk is given as H = 1m. The mass of the book is given as mb. The…
Q: A 2.33 kg cart moving along a horizontal track in the positive x-direction has a changing force…
A: Given: Fmax=6.17N, x=27.9cm, m=2.33kg The work done by a force is equal to the area under the…
Q: The driver of an 1700 kgcar (including passengers) traveling at 30.0 m/s slams on the brakes,…
A: Part A The change in kinetic energy is equal to the amount of work done or the amount of energy lost…
Q: An object with a mass of 4 kg is initially at rest on a horizontal floor. It is then pushed in a…
A: Given: The mass of the object is 4 kg. The initial speed of the object is 0 m/s. The applied force…
Q: A7.80 g bullet has a speed of 580 m/s when it hits a target, causing the target to move 6.10 cm in…
A: It is given that m=7.8 g=7.8×10-3 kgu=580 m/sx=6.10 cm=0.0610 m
Q: The acceleration of a 2.00 kg object is shown below. If as=6.0 m/s2, and the object starts from…
A: Mass of object (m) = 2 kg The value of as = 6 ms2initial velocity of object (u)= 0 msLet final…
Q: You may have noticed runaway truck lanes while driving in the mountains. These gravel-filled lanes…
A: Given information: The length of the lane, d=33.0 m The initial speed of the truck, u=60.0 mph=26.8…
Q: YouTube to MP3 Co... phone cover for mo... AGARWAL-PHY-166 HW5 Item 1 A 340 kg piano slides 3.0 m…
A:
Q: This is high school physics. Topic: Energy Conservation An unknown force is applied to a 8.0 kg…
A: Given that, Mass (m)= 8 kg Displacement (s)= 15 m Initial speed (u)= 10 m/s Final speed (v)= 20 m/s…
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 baseball pitcher sends a fastball toward the batter with a speed of 40 m/s. The batter swings and…
A: Given:- The mass of the ball is m = 145 g The speed of the ball is v = 40 m/s The distance that…
Q: 2. A 350 kg sofa slides 2.5m down a 30° incline and is kept from accelerating by a woman who is…
A: Given data
Q: 3: A dragster accelerates from rest down a street of length d = 400.0 m. In the absence of any…
A:
Q: Construct Your Own Problem - Consider humans generating electricity by pedaling a device similar to…
A:
Q: A baseball is thrown straight up with initial speed ?0. If air resistance cannot be ignored, when…
A: Given that:- A baseball is thrown vertically upward with speed Vo.
Q: QUESTION How does the answer for the work done by the applied force change if the load is doubled? O…
A:
Q: ke the moment when the spring is fully compressed right before the puck is launched as your initial…
A:
Q: n the 1950's, an experimental train, which had a mass of 2.5 x 10^4 kg, was powered across a level…
A: Since you have posted a question with multiple sub parts, we will provide the solution only to the…
Q: A 5.40-kg box rests on a horizontal surface. The coefficient of kinetic friction between the box and…
A:
Q: energy to find the suitcase's coefficient of kinetic friction assuming that the local acceleration…
A: Given value--- mass = 12 kg. initial velocity = 2.45 m/s. final velocity = 0 m/s. distance = 1.45…
Q: As a segment of an workout regiment to toughen their pectoral muscles, a man stretches a spring…
A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…
Q: Stopping distance. A car is traveling on a horizontal road with speed v_0=13.9 m/s at the instant…
A: Given, μk=0.7 And, v0=13.9 m/s The maximum acceleration is given as, a=−μsg=−(0.7∗9.8)=−6.86 m/s2
Q: A ball (A) of mass m 0.10kg is introduced inside a launcher (see diagram below). The launcher exerts…
A: Given data: The time dependent force is, Ft=Fc1+e-100t Mass of ball is m=0.10 kg.
Q: Consider the skateboarder in the Figure. If she has a mass of 55 kg, an initial velocity of 20 m/s,…
A: Mass = 55 kg Speed at bottom = 20 m/s Speed at top = 12 m/s Height = 5 m
Q: An object with a mass of 12.5 kg is moving along a rough horizontal surface. At a certain point it…
A:
Q: On an essentially frictionless, horizontal ice rink, a skater moving at v = 3.0 m/s encounters a…
A:
Q: ubmit Answer Tries 0/5 d the work done by the weight of the block. ubmit Answer Tries 0/5 d the…
A:
Q: Several physical situations are described below. For each situation, simplify the work-energy…
A: Since the skier is in motion on the top of the first hill, thus the initial kinetic energy (KEi) is…
Q: A 10-g bullet is travelling 60 m/s when it is shot straight upward. It reaches a maximum height of…
A: According to question---- Given data-- Mass m = 10 g Initial speed = 60 m/sec. Final speed = 0…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- In three cases, a force acts on a particle, and the particle is displaced from an initial position to a final position. The figure below shows the position-versus-force graphs, indicating the initial and final positions of the particle in each case. Find the work done by the force on the particle in each case.A mechanic pushes a m=2300 kg car from rest. He does W=4850 J of work in the process. During this time the car moves d327 m. Neglect the friction to answer the following questions. What is the horizontal force exerted on the car? Units: What is the velocity of the car at the final distance? Units:Can the work done by Friction be zero? In a case where static friction exists, the object does not move and the change in kinetic energy is also zero? W = Fd = ?KE = 0? What did I do wrong?
- Using the work-energy theorem to investigate a traffic scene A car hit a pedestrian and immediately the driver slammed on the brakes to stop the car. During the subsequent trial, the driver's lawyer claimed his client was obeying the posted 35-mi/hr speed limit. You have been called in as the state's expert witness. Your investigation of the accident found that the skid marks made while the brakes were applied until the car stopped were Ax = 94 m long. You also measured the coefficient of kinetic friction between the car's tires and the road (using a drag sled) to be μk = 0.36. (a) Use the work-energy theorem to show that the car's minimum speed vo when the driver slammed on the brakes is given by vo = √2 μg Ax (b) Use the result of part (a) to determine if the car was speeding when the pedestrian was hit. [answer: The car's speed was at least 57 mi/hr when the brakes were applied.] (c) If the car's mass is 1470 kg, how much heat energy was produced while the car was skidding? [answer:…Several physical situations are described below. For each situation, simplify the work-energy equation by canceling any zero terms and any energy terms (whether KE or PE) which are unchanging. Explain each term which gets canceled. A track is constructed by stretching a grooved and pliable material between two lab poles. A metal ball starts from rest at point A and rolls to point B. Friction and air resistance have an effect upon the ball's motion. Simplification of Work-Energy Equation KEi + PEi + Wnc = KEf + PEfA 2.0kg block starts with a speed of 10. m/s at the bottom of a plane inclined at 35° to the horizontal. The coefficient of sliding friction between the block and the plane is 0.30. use the work-energy theorem to determine how far the block slides along the plane before momentarily coming to rest. I know the answer is 6.2, I just don’t know how to get to it.
- Suppose the ski patrol raises a rescue sled and victim, having a total mass of 85.0 kg, up a ? = 62.0° slope at constant speed, as shown in the figure. DO NOT USE THE ANGLE SHOWN IN THE FIGURE! USE THE ANGLE IN THE PROBLEM STATEMENT ABOVE. The coefficient of friction between the sled and the snow is 0.130. Calculate the normal force on the sled (in N). Calculate the work done (in J) by the force of friction as the sled moves 30.0 m up the hill. (Hint: Think about the direction of the friction force. Should it be different than the direction shown in the figure?). Calculate the work done (in J) by the tension force in the rope on the sled over this distance. Calculate the work done (in J) done by the force of gravity on the sled over this distance.Suppose the ski patrol lowers a rescue sled carrying an injured skiier, with a combined mass of 77.5 kg, down a 60.0° slope at constant speed, as shown in the Figure. The coefficient of kinetic friction between the sled and the snow is 0.100. b)How much work, in joules, is done by the rope on the sled over this distance?1)A block with a mass of 44.0 kg is pushed with a horizontal force of 150 N. The block moves at a constant speed across a level, rough surface a distance of 6.65 m. Please draw and show your free body diagrams in your answers. This will also help you to solve the problem! (a)What is the work done (in J) by the 150 N force? (b)What is the coefficient of kinetic friction between the block and the surface?