Based on page 30 from the lecture note, match the answers with questions. the initial kinetic energy of the cabinet (K;) A. -200J the final kinetic energy of the cabinet (K¢) B. 4208 J C. OJ the change in kinetic energy of the cabinet (AK) D. 4008 J E. -4208 J F. -4008 J G. -4408 J H.4408 J 1. 200)

Q: A 53.0 kg cheetah accelerates from rest to its top speed of 33.3 m/s. (a) How much net work (in J)…

A: a)The required work done is,

Q: A 9.50 g bullet has a speed of 1.26 km/s. (a) What is its kinetic energy in joules?  ________ kJ…

A: The kinetic energy of the bullet is KE=12mv2=129.50×10-3 kg1.26×103 m/s2=7541.1J≈7.54kJ

Q: A system in which only one particle can move has the potential energy shown in (Figure 1). Suppose…

A: Given information: The potential energy (U1) = 18 J The potential energy is equal to 18 J at 0 cm…

Q: A 630-kg car speeds up from rest to 43 mph in 3.2 seconds. What is the work done on the car and what…

A: Given Data: The mass of the car is, m = 630 kg. The initial velocity is,  u = 43 mph. The final…

Q: A 71.1 kg runner has a speed of 3.30 m/s at one instant during a long-distance event. (a)What is the…

A: The mass of the runner, m=71.1 kg   The speed of the runner, v1=3.30 m/s

Q: A 1200 kg frictionless roller coaster starts from rest at a height of 18 m. What is its kinetic…

A: Using law of conservation of energy, the expression for find kinetic energy is…

Q: A 156 gram ice hockey puck slows down from 45.0 m/s to 44.5 m/s as it slides 17.5 m across the…

A:

Q: 5. (a) What is the kinetic energy in joules of a 1000kg automobile traveling at 90km/h? (b) How much…

A:

Q: The power is the rate of work or rate of energy transfer. The Sl units for power are joule/second…

A: Given: The force is equal to: F→=3i^-2j^ The velocity is equal to: v→=4i^+6j^

Q: Jane is initially walking at a certain speed so that her kinetic energy is 150 J. Then, the rain…

A:

Q: At t = 1.0 s, a 0.56 kg object is falling with a speed of 6.5 m/s. At t = 2.0 s, it has a kinetic…

A: Given: The mass of the object is 0.56 kg. The speed of the object is 6.5 m/s at t = 1 s. The kinetic…

Q: A 0.300-kg ball has a speed of 15.0 m/s. (a) What is its kinetic energy? (b) What If? If its speed…

A:

Q: What is the kinetic energy of a 65.0 kg sprinter running at 2.30 m/s? Express your answer in J.

A:

Q: •P49 You throw a ball straight up, and it reaches a height of 20 m above your hand before falling…

A:

Q: At t = 1.0 s, a 0.54 kg object is falling with a speed of 6.5 m/s. Att = 2.0s, it has a kinetic…

A:

Q: What is its kinetic energy at the low point? (You must provide an answer before moving to the next…

A: Given data:  Mass (m) = 0.15 kg Velocity (v) = 9 m/s Required: Kinetic energy (KE)

Q: What is the speed of a 55 kg woman running with a kinetic energy of 1600 J?

A: Given Data : The mass of the women is given as M = 55 kg The kinetic energy of the women is given as…

Q: A 0.600-kg particle has a speed of 2.00 m/s at point A and kinetic energy of 7.50 J at point B. What…

A:

Q: In the figure, a block is sent sliding down a frictionless ramp. Its speeds at points A and B are…

A:

Q: KE-1 a) A 1,500kg car is traveling at 30.0m/s. How many joules of kinetic energy does the car have?…

A: kinetic energy of object is given as   K.e = 1/2 mv2 here m = mass of object  v = velocity of…

Q: An athlete with a mass of 57.0 kg is in a cross country race, and at one instant he has a speed of…

A: mass of athelete (m) = 57 kg speed (v) = 5.20 ms

Q: IP A 9.00 g bullet has a speed of 1.20 km/s You may want to review (Page 204) Part A What is its…

A: The kinetic energy(K) of an object of mass (m) moving with a velocity (v) can be given as, K = 12mv2

Q: g particle has a speed of 5.0 m/s at point A and kinetic energy of 8.0 J at point B.

A:

Q: A B A student builds a roller coaster as shown. The heights of the points are A= 2.1 m B= 0.9 m C= 0…

A: Given the stone is released from the point A with height hA = 2.1 m so the initial velocity is zero…

Q: A system in which only one particle can move has the potential energy shown in (Figure 1). Suppose…

A:

Q: 10. A machine is used to move a 700 N object by 2.00 m by exerting 400 N of force through a distance…

A:

Q: A 630-kg car speeds up from rest to 43 mph in 3.2 seconds. What is the work done on the car and what…

A: (a) Work done is equal to change in kinetic energy W1=Ekf-Eki=12mvf2-vi2=12630 kg19.2 ms2-0…

Q: A pitcher accelerates a 0.14-kg hardball fromrest to 42.5 m>s in 0.060 s. (a) How much work does…

A:

Q: Revie A system in which only one particle can move has the potential energy shown in (Figure 1) .…

A:

Q: A 56.0-kg runner has a speed of 4.10 m/s at one instant during a long-distance event. (a) What is…

A: Mass of runner m = 56 Kg Speed of runner v = 4.10 m/s a) KE of runner = ?  b) KEf/KEi = ?

Q: 1. A 66.1 kg runner has a speed of 4.70 m/s at one instant during a long-distance event. (a)What is…

A: The given data are: m=66.1 kgu=4.7 m/s Here, m is the mass and u is the initial speed.

Q: A 64.0 kg cheetah accelerates from rest to its top speed of 30.7 m/s. HINT (a) How much net work (in…

A:

Q: (Figure 1) is the energy bar chart for a firefighter sliding down a fire pole from the second floor…

A:

Q: A 64.0 kg cheetah accelerates from rest to its top speed of 32.5 m/s. (a) How much net work (in J)…

A: (a) According to the work energy theorem, W=∆K=12mv2-12mu2=12mv2-u2 Substitute the values, to find…

Q: 5. A 2-kg object moved from rest to a speed of 10 m/s. a) Calculate the work done on the object? b)…

A:

Q: A 2 kg block slides on a frictionless surface at 10 m/s. How much kinetic energy does it have?

A: Mass of block, m= 2 KgSurface is frictionless.Velocity,v=10 m/s

Q: A 9.50-g bullet has a speed of 1.30 km>s.(a) What is its kinetic energy in joules? (b) What is…

A:

Q: Q4/ A body of mass 1 kg move along the Y-axis, its position varied with time according to equation y…

A: m=Mass of object=1 kg The position function is y=5t4+4t5+2t3+t+2

Q: A 0.59-kg particle has a speed of 5.0 m/s at point A and kinetic energy of 8.5 J at point B. (a)…

A: Given Data:- The mass of the particle is m = 0.59 kg. The speed of the particle at point A is vA =…

Q: 02a. A 0.442 kg ball is dropped from a height of 4.61 m. How much potential energy did the…

A: U=mgh=petential energy at height h By conservation of energy mgh=1/mv2  when final PE is zero i.e…

Q: A helicopter (m = 3000 kg) is cruising at a speed of 60 m/s at an altitude of 200 m. What is the…

A: Total mechanical of object is given asW=K.E + P.EHereK.E=Kinetic energyP.E=Potential…

Q: 4. For this problem, try to use only energy considerations in your solution. You are asked to design…

A: Potential Energy of the person = Kinetic energy of the person as hits the netmgh = 12mv2gh = v22v…

Q: Suppose an elephant has a mad of 3150 kg. a. How fast, in meters per second, does the elephant need…

A:

Q: Complete information on mechanical work in M. K. S. units from the following table

A: Tension, length, force and acceleration quantities are asked.

Q: 1. Which of the following situations is an example of kinetic energy being transformed into…

A: Throwing a Ball high in to the air Intially ball has kinetic energy, when it reaches to the maximum…

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.