1.) A 75 kg sprinter accelerates from 0 to 8.0 m/s in 5.0 s. What is the output erergy, in kJ (kiloJoules)? 2.)A 75 kg sprinter accelerates from 0 to 8.0 m/s in 5.0 s. What is the output power, in kW (kiloWatts)? please answer both and soon please and thank you <3

Q: 4. A 50 gram golf ball is shot from the top of a cliff at a speed of 20.0 m/s. The ball lands on the…

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Q: 2. If a man lifts a 20.0-kg bucket from a well and does 6.00 kJ of work, how deep is the well?…

A: solution is given as

Q: A 70.0 kg sled is pulled from rest by a snowmobile and accelerates at 2.2 m/s² [forward] for 7.5 s.…

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Q: What is the efficiency of an out-of-condition professor who does 2.00 ✕ 105 J of useful work while…

A: Given: Food energy to mobilize (input) (E) = 510 kCal. = 510×4184 = 2133.84×103 J Work done (output)…

Q: Question 10 - Work, Energy and Power Calculate the work done by a 47N force pushing a 0.025 kg…

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Q: 2. How long must a 100-W light bulb run in order to consume a million joules of electrical energy?…

A: (2)    Given data:                      Power (P) = 100 W                      Electrical Energy (E)…

Q: A crate of mass 10.0 kg is pulled up a rough 20o- incline. The pulling force is 100 N parallel to…

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Q: 3. A 60-kg jogger runs up a long flight of stairs in 4.0 s. The vertical height of the stairs is 4.5…

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Q: A vehicle of 50 quintal climbs up a hill of 10 m. The potential energy gained by it is (take g = 10…

A: Calculating the potential energy by formula P = mgh

Q: A 1200 kg car can accelerate from 30.0 m/s to 50.0 m/s in 10.0 s. Neglecting friction and air…

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Q: In terms of saving energy, bicycling and walking are far more efficient means of transportation than…

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Q: Compute the work (in joules) required to compress a spring 9 cm more when it is already compressed 5…

A: Given data:  Initial compression in spring (x1)= 5 cm = 0.05 m Then Spring compressed 9 cm more…

Q: Question 13 Calculate the power output, in kilo-watts needed for a 900-kg car to climb a 2.00 slope…

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Q: A 60-kg jogger runs up a long flight of stairs in 4.0 s. The vertical height of the stairs is 4.5 m.…

A: Given : Mass of the jogger, m = 60 kg Time taken by the jogger to climb the stair, t = 4 s Vertical…

Q: A 46.9 kg teenager climbs stair to exercise as shown, Δy = 12.0 m. It is completed in 25.0 s. What…

A: Given: The mass of the student is 46.9 kg. The vertical displacement is 12 m. The time interval is…

Q: what is the kinetic energy in joules of a 1120-kg automobile traveling at 88 km/h?   2. how much…

A: Given, Mass, m = 1120 kg Speed, v = 88 km/h = 88×518=24.44 m/s

Q: Need help with knowing how to solve practice exam questions so I can pass my exam next week. Plz…

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Q: mr.berkley is driving his car down lake park at 21 m/s. He sees something in the road and slows down…

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Q: 4- Which of the following is NOT a stored form of energy? (a) chemical energy (b) gravitational…

A: Part (4): Introduction: It is the energy that holds these particles together. Biomass, petroleum,…

Q: For exercise, an athlete lifts a barbell that weighs 400 N from the ground to a height of 2.20 m at…

A: Given: weight force of the barbell, FW=400 N displacement, d=2.20 m

Q: In the high jump, the kinetic energy of an athlete is transformed into gravitational potential…

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Q: 3. How much work is done on a small car if a 3150 N force is exerted to move it 75.5 m to the side…

A: 3) The expression for find work done is W=F·s Substitute values in the above equation…

Q: 1- An 18,000g object is accelerated at 2m / s', if the object is displaced 40m. What is the work…

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Q: 4. A force of 80 N used to push a chair across a room does 320 J of work. How far does the chair…

A: Solution as

Q: A 58.0 kg cheetah accelerates from rest to its top speed of 33.3 m/s. HINT (a) How much net work (in…

A: . (a) work done is equal to change in kinetic energy. that is, W=12mv2-12mu2u=0W=12mv2W=1258.0…

Q: 8 What is the work done (Nm) to a system with a mass of 20kg by lifting it using 2000N of force and…

A: Given  Mass (m) = 20 kg Force (F) = 2000 N  Displacement (h) = 2 m    Work done is given as  : -…

Q: For exercise, an athlete lifts a barbell that weighs 400 N from the ground to a height of 2.20 m at…

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Q: 20 Va = 0500m Is m= 1.00 kg Hk -075 T= 10 .0N : 2.060m

A: Work done by friction = μk (T sin20 - mg cos20) x d

Q: 4. An 800 N student runs up a flight of stairs rising 6 meters in 8 seconds. What is the average…

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Q: A 2000 Kg car is moving at 54 km/hr behind a truck. In order to pass the track, the car changes its…

A: Given:  mass of car, m = 2000 kg  initial velocity, u = 54 km/h = 15 m/s final velocity, v = 72 km/h…

Q: 2 How much energy does it take to drive a 200 Hp car at 20 % power for 3 hours if it is 12 %…

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Q: The spring-flex exercise system consists of a spring with one end fixed and a handle on the other…

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Q: True or False 1. Work depends on how fast a force displaces an object. Work is a time-based…

A: 1. Work done by an object is given as, W=F.s Where F is the force applied on an object            s…

Q: 3. Dan Jansen of the United States won a speed-skating competition at the 1994 Winter Olympics in…

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Q: A spider walks on a path that is at 25 ∘. Calculate the power output of a 0.42g spider as it walks…

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Q: • A 700 N Marine in basic training climbs a 10.0 m vertical rope at a constant speed in 8.00 s. What…

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Q: JC races with his classmates by running up the stairs to the top of the school building 15.8 m high.…

A: Given data: Height (h) = 15.8 m Time taken by JC = 3.1 minutes Time taken by LJ = 3.28 minutes Mass…

Q: 3. A car is initially travelling at 5.00 m/s and then accelerates to a final velocity of 15.0 m/s in…

A: Initial velocity of car (u) = 5 m/s final velocity (v) = 15 m/s time taken to increase the velocity…

Q: (II) A 975-kg sports car accelerates from rest to 95 km/h in6.4 s. What is the average power…

A: Final velocity, v=95 km/h=26.4 m/s Initial velocity, u=0 Mass, m=975 kg Work done is equal to change…

Q: Question 23 A toy gun fires a 9.41 g projectile disc by using a compressed spring (k= 1720N/m). The…

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Q: 2. How much works is done by a force of 35 N that was applied to push a cart of 8.5 m along the…

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Q: 3. How much work is done by a force of 50 N that acts on the block at an angle of 35° from the…

A: The free-body diagram of the block is shown below. Here, F is the applied force.

Q: A car traveling at (50 ft/sec) exerts a draw -bar pull of (20,000 lb). What horsepower does it…

A: Let v denotes the speed, F denotes the force of draw-bar pull, and P denotes the power of the car.…

Q: Water flows over a waterfall that is 20.0 m high at the rate of 4.0 x 104 kg/s. If this water powers…

A: Solution: Given: 1 MW = 106 W h = height of waterfall = 20.0 m g = gravitational acceleration = 9.81…

Q: A 10,040 Watt crane is lifting a load with constant speed of 0.3 m/s. What is the mass of the load?…

A: Power of the crane, P = 10400 watt Constant velocity, v = 0.3 m/s g = 9.8 m/s2 Consider the force…

Q: How much work is done by the car?

A: We know that Change in kinetic energy is called network done Workdone=(KE)Final - (KE)Intial   Here…

Q: A 30N fruit basket is lfted at a constant velocity from the floor to a heiht of 2M. How much work is…

A: Given data:  Weight of basket (mg) = 30 N Height (h) = 2 m Required: Work done on the fruit basket