12.0 kg I. 2.00 m 4.0 kg

Q: A child whose weight is 267 N slides down a 6.1 m playgroundslide that makes an angle of 20 with the…

A: a. Here the magnitude of work from the friction kinetic force is equal to the change in thermal…

Q: A sled of a mass 30.0 kg is given a kick on a frozen pond,imparting to it an initial speed v…

A: Given Data: The mass is, m = 30.0 kg. The initial speed is, u = 4.0 m/s. The coefficient of kinetic…

Q: .An advertisement claims that a certain 1300 kg car can accelerate from rest to a speed of 25 m/s in…

A: Please see the answer below

Q: The electric motor of a model train accelerates the train from rest to 0.540 m/s in 30.0 ms. The…

A: Power is defined as the rate of work done. Using the work-energy theorem we will find out the…

Q: A 4.50 kg block is acted on by a 20.9N net force. If the block starts from rest, then at the end of…

A: Given Data :mass of block m  = 4.5 kgmagnitude of Net force F = 20.9 Nlet force acts in n^ hence F→…

Q: It takes a minimum distance of 98.26 m to stop a car moving at 17.0 m/s by applying the brakes…

A: Given ; case -1 minimum stopping distance s=98.26m, initial velocity of car u=17.0 m/s final…

Q: A large cruise ship of mass 6.50 x 107 kg has a speed of12.0 m/s at some instant. (a) What is the…

A: a). Formula to calculate the kinetic energy is,

Q: 5. How long does it take for a 19kW steam engine to do 6.8 x 107) of work?

A: Given power of engine p=19kW=19x103W Work it does W=6.8x107J

Q: Asoccer player strikes a 428gramball with an initial velocity of 27.4m/s. The ball strikes the…

A: Given data:  Mass of ball (m) = 428 g = 0.428 kg Initial velocity (Vi) = 27.4 m/s Final velocity…

Q: Youare riding a sled trougha frozen lake, and you accelerate the 80.0-kg combination of you and the…

A: m=80 kgvi=1 m/svf=3.5 m/st=1.5 s

Q: A sled is given a push across a horizontal surface. The sled has a mass m, the push gives it an…

A: Given Data: Mass of the sled = m.Initial speed of the sled (v) = 3.40 m/s.Coefficient of kinetic…

Q: A 53.2-kg skateboarder starts out with a speed of 2.33 m/s. He does 85.8 J of work on himself by…

A:

Q: A 628-kg elevator starts from rest and moves upward for 4.10 s with constant accelerațion until it…

A:

Q: A 54.2-kg skateboarder starts out with a speed of 1.89 m/s. He does 81.8 J of work on himself by…

A: Given Data: The mass of a skateboarder is, m=54.2 kg The initial speed of a skateboarder is, u=1.89…

Q: A small block of mass 200 g starts at rest at A, slidesto B where its speed is vB = 8.0 m/s, then…

A: a)Initially, as the block slides from A to B , it actually loses a height of 4m.The potential Energy…

Q: To make a batch of cookies, you mix half a bagof chocolate chips into a bowl of cookie dough,…

A:

Q: What minimum speed does a 100 gg puck need to make it to the top of a 5.20 mm -long, 27.0 ∘∘…

A: Mass, m = 100 g Length of ramp, l = 5.20 m Angle, θ = 27°

Q: A 69.0 kg diver is 3.30 m above the water, falling at speed of 4.60 m/s. Calculate her kinetic…

A: Given  Mass of diver m= 69kg Initial Height of diver hi = 3.30m Initial speed of diver Vi = 4.60m/s…

Q: A 20kg box has an inital velocity of 20 m/s to the right. A person applies a force of 200N to the…

A:

Q: An advertisement claims that a(n) 1600 kg car can accelerate from rest to 26 m/s in 8.4 s. Given:…

A: Given Mass of the car is given as m=1600 kg Initial speed of the car is vi=0 Final speed of the car…

Q: When an automobile moves with constant speed down a highway, most of the power developeu Dy the the…

A: GIVEN:A car moving down a highway with a speed of 25m/s and has a 205 horsepower engine. 1hp=746W…

Q: (a) What is its kinetic energy at this moment? (b) Find the net work done on the object if its…

A: Please refer below page.If you have any doubts please feel free to ask.Explanation:Step 1: Step 2:

Q: A 27.93 kg rocket in a fireworks display is launched from rest and follows an erratic flight path to…

A: (1) number of electrons in the object N=qe=27.93 C1.602×10-19 C=1.743×1020

Q: A mechanic pushes a 3770 kg car from rest to a speed of v, doing 4845 J of work in the process. Find…

A: The car's mass is, m=3770 kg The initial sped of the car is, u=0 m/s The work done in the process…

Q: Given: A ball of mass I kg is released from rest at A. and rolls down a quarter cirole . until point…

A:

Q: PresstoRest. Consider a 15-kg box sliding down a fric- tionless plane inclined at an angle 0 the box…

A:

Q: A 61.8-kg skateboarder starts out with a speed of 1.75 m/s. He does 80.4 J of work on himself by…

A: According to this theorem, the total work done on an object is equal to the change in its energy.…

Q: Suppose the energy required to speed up a car initially at rest until the Speed V, ignoring the…

A:

Q: A hydroelectric generator converts kinetic energy of water into electrical energy. Each second 2264…

A: (A) Total energy available per second

Q: Describe the energy transformations when a child hopsaround on a pogo stick (there is a spring…

A: Initially the spring is compressed by doing work on it. During the compression, the work done on the…

Q: Calculate the kinetic energy of a truck that has a mass of 2900 kg and is moving at 55 m/s.

A: We are allowed to answer only the first question. For solutions to other questions, please re-post…

Q: A new car model claims that a certain 1600 kg car can accelerate from rest to a speed of 25m/s in a…

A: Given  Mass of car, m = 1600 kg  Accelerates from rest at speed of 25 m/s in time 10 sec

Q: A body of mass 17kg is initially at rest on a horizontal frictionless surface. A force of 30N acts…

A: a) The equation for the acceleration of the body is given by,

Q: WORK, ENERGY POWER P A 0.2793 kg rocket in a fireworks display is launched from rest and follows an…

A: Given data: Mass of rocket, m=0.2793 kg Height, hf-h0=29 m Work done by non-conservative force,…