An 64 kg man runs up stairs and reaches 9 mheight for 12 s. what is his power? Use g = 9.8 m/s2 Calculate answer to one decimal.

Q: What is the velocity of a 4.8 x10^3 kg truck whose kinetic energy is 125

A: Given value--- mass = 4.8 × 103 kg. kinetic energy = 126 J. We have to find--- velocity?

Q: A man of mass 60 kg runs up a flight of 30 steps in 40 s. If each step is 20 cm high, calculate his…

A: Step 1   ∙Mass of man m=60kg   ∙Flight 30 steps in 40sec.   ∙Each step is 20cm high.

Q: It takes 165 k] of work to accelerate a car from 21.0 m/s to 27.5 m/s. What is the car's mass? kg

A: Given data The work required is given as W = 165 kJ. The initial velocity is given as u = 21 m/s.…

Q: As part of a charity fund raising drive, a runner with mass 50.0 kg runs up the stairs to the top of…

A: Mass of the runner=50kgHeight=443macceleartion due gravity=g=9.8m/s2Increase in potential…

Q: Find the ratio of their kinetic energies.

A: Given; Two bodies  of equal masses are moving with uniform velocities v and 2 v.  → Find ratio of…

Q: calculate the power used lifting a 20 kg barbell to height of 0.75 m in 1.25 s.

A: given: mass of barbell m =20 kg height lifted h = 0.75 m time taken t = 1.25 sec

Q: What is the velocity of a 5000 kg truck whose kinetic energy is 360 kJ? O 144 m/s O 43 m/s O 31 m/s…

A: Write the expression for the kinetic energy. Here, m represents the mass and v represents the…

Q: A man with 80.0 kg mass climbs a stairs with a height of 7.0 m within 15.0 seconds. What is his…

A: P=Et=mght

Q: What is the kinetic energy in ft-lb of a 801 lb motorcycle traveling at 58 mi/h ?

A:

Q: a 1200 kg sports car is advertised to accelerate from 0-100km/h in 3.00s. What is the power output…

A: Given value--- mass = 1200 kg. initial speed = 0 m/s. final speed = 27.78 m/s. time = 3 sec. We…

Q: km Calculate the kinetic energy of a 3.0x 10 kg airplane moving at a speed of 0.18 Round your answer…

A: Given data:  Mass (m) = 3.0×104 kg Speed (v) = 0.18 km/s = 180 m/s Required: The kinetic energy

Q: Find the power generated If a 750 N force causes an object to reach a final velocity of 32 m/s?

A: Given, Force = 750 N  Final velocity = 32 m/s  We know that power generated = force×velocity

Q: How long will it take a 742-kg car with a useful power output of 43.2 hp (1 hp equals 746 W) to…

A: Mass of car (M) = 742 kg  Output power of car = 43.2 hp  Power (P) = 43.2(746W) = 32227.2 W  Speed…

Q: .0 x 10^3 dyne.dm/score to horsepower

A:

Q: What is the kinetic energy in ft-lb of a 801 lb motorcycle traveling at 58 mi/h ? Round your answer…

A: Write the given values with the suitable variables. m=801 lb=801×0.4536 kg=363.33 kgv=58…

Q: What is the total mechanical energy of falling baseball from the highest of 4m, 3.22m and 2.25m? For…

A: Here we have to apply conservation of mechanical energy Conservation of mechanical energy According…

Q: How fast would a(n) 77 kgkg man need to run in order to have the same kinetic energy as an 8.0 gg…

A: Write the equation for the kinetic energy. KE=12mv2 Here, The mass of the object is "m" The speed of…

Q: What’s the formula for kinetic energy?

A: kinetic energy

Q: How long will it take a 921-kg car with a useful power output of 57.6 hp (1 hp equals 746 W) to…

A:

Q: All the following are units of power except a. hp b. watt С. J/s d. N.m/s e. kg.m/s^2

A:

Q: An object of mass 3.00 kg is dropped off the top of a building which is 57.3 m high. How far is the…

A: The kinetic energy of the object at the top most point is zero. The total energy of the object at…

Q: Mohan, having a mass of 40 kg, runs up a staircase of 50 steps in 10 s. If the height of each step…

A: Mass (m) = 40 kg Height of 1 step = 15 cm = 0.15 m Height of 50 steps (h) = 50 * 0.15  = 7.5 m Time…

Q: A 7.03 kg bowling ball moves at 2.85 m/s. How fast must a 2.26 g Ping-Pong ball move so that the two…

A:

Q: The kinetic energy of a motorcycle and rider is 59,600 J. If their total mass is 322 kg, what is…

A: Given data The kinetic energy of the motorcycle is given as KE = 59600 J. The mass of both the…

Q: Janine is riding a bicycle. Over a period of 8.90 second, she increases her speed from 0 m/s to 7.57…

A: Given data:  Time (t) = 8.90 s Initial velocity (Vi) = 0 m/s Final velocity (Vf) = 7.57 m/s Mass (m)…

Q: what is the speed of a 59.1kg women running with a kinetic energy of 2001 J?

A: The expression for kinetic energy of the object is, KE=12mv2v2=2KEmv=2KEm

Q: A 70 kg man runs up a long flight of stairs in 4 s. The vertical height of the stair is 4.5m.…

A: mass of man (m) = 70 kg time t = 4s height h =4.5 m

Q: It takes 156 kJ of work to accelerate a car from 20.4 m/s to 28.2 m/s. What is the car's mass?

A: The mass of the car can be calculated in given steps:Given:

Q: A 116.3 kg-tiger runs with an initial velocity of 0 m/s to 47 m/s in a span of 7.5 seconds. What is…

A: Given: The mass (m) of the tiger is 116.3 Kg. The initial velocity (u) is 0 m/s. The final velocity…

Q: A man of mass 60.0 kg takes 4 seconds to run up a 4-m high stairs. Which of the following gives the…

A:

Q: A man whose weight is 700 N takes 2.5 min for climbing up a staircase. What is the powerdeveloped in…

A: Work = force x distance Power is defined as the rate of doing work.

Q: A 500 g cricket ball is moving with 30 m/s. Estimate the speed of a 150g tennis ball to nave the…

A:

Q: How long will it take a 816-kg car with a useful power output of 47.2 hp (1 hp equals 746 W) to…

A: Given data: Mass (m) = 816 kg Power output (P) = 47.2 hp 1 hp = 746 W Speed (v) = 19.6 m/s Air…

Q: A 1200-kg sports car is advertised to accelerate from 0-100 km/h (27.78 m/s) in 3.00 s. What is the…

A: Solution

Q: An 69 kg man runs up stairs and reaches 10 mheight for 14 s. what is his power? Use g = 9.8 m/s2…

A: Given Mass m = 69 kg Height h = 10 m time t = 14 s We have to find out the power

Q: What average mechanical power must a 70.0 - kg mountainclimber generate to climb to the summit of a…

A: Using Work-Energy theorem,

Q: 1.2Compute the number of watts which is equivalent to 15 horsepower using the following equivalents.…

A: Power (P) = 15 horsepower To convert : The given power into units of WATTS

Q: You are travelling in a car 90.0 m/s If you have a mass of 1.200.0 kg and the car ha a mass of 79.5…

A: Given data The traveling speed of the car is given as v = 90 m/s. The mass of the person is given…

Q: What is the power developed by the student running the stairs?  1N = 0.225 lb 1 hp = 746 watts…

A:

Q: A car generating a power of (93670.06)watts is traveling on a road with a coefficient of kinetic…

A:

Q: How do I set this problem up? What average power does a weightlifter need to lift 225 lb a distance…

A: The average power is given as                                   P = W/t where W is the work done and…

Q: Calculate the kinetic energy of a 300 g baseball thrown at a velocity of 44 m/s. 440 J 290 J 580 J…

A:

Q: Grace ran 18.084 km in 1.000 h, a world record time. If her kinetic energy was 694 J, what was her…

A: Given Data : The distance traveled by Grace is given as d = 18.084 Km = 18084 m. The time taken by…

Q: What is the power demonstrated by a weightlifter when lifting a 420 kg barbell 1.4 meters in 0.65…

A:

Q: The prompt is in the image attached. The questions I need help are:a) Evaluate the acceleration at…

A: As per the question, the motion is given by the equation

Q: A 5.0 kg object is moving at 4 m/s? By what factor does its kinetic energy change if its mass is…

A: GIVEN: m= 5kg v= 4m/s  Kinetic energy: Kinetic energy is the energy that an item or particle has as…