A 80-N constant force exerted on a 15-kg object for 12 seconds. The initial velocity of an object is 6 m/s and the direction of the object is the same as the direction of the force.    a. Determine the work done on the object.    b. Determine the final kinetic energy.    c. Determine the power.    d. The increase in the kinetic energy of the object.

Q: A child applies a force F⃗ F→ parallel to the xx -axis to a 10.0-kgkg sled moving on the frozen…

A: (1) Write the expression for the work done by the force in the interval 0<x<8 m.

Q: An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and…

A: The given values are, m=4.4×104  kgu=7400 m/sv=5600 m/ss=2.2×106  m

Q: A 33.0 kg box is sliding on a horizontal surface with no friction. The box is initially moving with…

A: Given : Mass of the box, m = 33 kg Velocity of the box, v = 4.31 m/s Velocity of the Carter, u =…

Q: 4. A 128.0-N box is pulled up a frictionless ramp inclined at 30° from the horizontal at a distance…

A:

Q: Q4. (b) A helicopter lifts a 72 kg astronaut 15 m vertically from the ocean by means of a cable. The…

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Q: *22. The concepts in this problem are similar to those in Multiple- Concept Example 4, except that…

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Q: 18. A crate of mass 10.0 kg is pulled up a rough 20°- incline. The pulling force is 100 N parallel…

A: Given: The mass of the crate is 10 kg. The angle of inclination is 20o. The pulling force is 100 N.…

Q: 4. A 250-N force accelerates a 25.0-kg crate from rest along a horizontal frictionless surface for a…

A:

Q: 1.The weight lifter is bench-pressing a barbell whose weight is 710 N. Then raises the barbell with…

A: weight = 710N distance = 0.65 m a)work done during lifting phase = weight * displacement * cos(0o) =…

Q: You are using a rope to lift a 14.5 kgkg crate of fruit. Initially you are lifting the crate at…

A: given:-      mass of crate of fruit = 14.5 kg    Initial velocity of crate (u) = 0.500 m/s  Tension…

Q: A net external force is applied to a 7.13-kg object that is initially at rest. The net force…

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Q: A man returning from ice fishing trip pulls a sled with fish. Total mass of the sled and fish is…

A:

Q: An Alaskan dog sled racer pulls his 75.0 kg sled at an angle of 40.0 degrees to the ground. He…

A:

Q: Josh pushes a 48.0-kg shopping cart with a force of 85.0 N in a direction 35.0° below the horizontal…

A: weight of cart w = 48kg applied force on cart F = 85N the applied direction θ = 35° distance moved…

Q: Q05. If an object goes to the left, but one of the forces pushes it to the right, opposing its…

A:

Q: e roof, descends another vertical 7.0-meter ladder, and returns to his starting location on the…

A: GivenMass of carpenter, m=75 kgHeight of ladder, h=7 mDistance travelled on roof, d=12 m

Q: A 587.91 kg flying object has a net propulsion force of 470 N. Over a short period of time, the…

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Q: A 62.0-kg man is riding an escalator in a shopping mall. The escalator moves the man at a constant…

A:

Q: 50-N force acts on a 2-kg crate that starts from rest. At the instant the particle has gone 2 m the…

A: Given  The force acts on the crate is F = 50 N. The mass of the crate is m = 2 kg. The distance…

Q: A 33.0 kg box is sliding on a horizontal surface with no friction. The box is initially moving with…

A: Given: The mass of the box is 33.0 kg The magnitude of initial velocity is 6.77 m/s. The magnitude…

Q: An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and…

A:

Q: There is a 100 kg box that starts at rest. a person pushes that box over the course of 18 meters…

A: Given mass of box m = 100 kg initial speed u = 0 m/s final speed v = 10 m/s displacement x = 18 m…

Q: A 5.39 kg object is initially traveling at 32.8 m/s. During the next 240 seconds – 683 J of total…

A: Given:Mass of the object = 5.39 kgInitial velocity = 32.8 m/sWork done = - 683 J

Q: Two blocks of masses My=1 kg and Mo= 2 kg are connected by a very light string passing over a…

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Q: . A 30 kilogram of box of fruits is being pushed on a cemented floor. If it is pushed on a 4.5-meter…

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Q: A 0.25 slug (3.6 kg) object begins moving at 46 mph (20.6 m/s). A force slows it down to 37 mph…

A: Mass of the object is m = 3.6 kg Initial speed of the object is u = 20.6 m/s Final speed of the…

Q: A 5.00 gram bullet moving horizontally with a speed of 400 m/s collides with a wooden block. After…

A:

Q: The work that a force does by acting on an object is equal to what? a.) the product of momentum and…

A: When an object is moved by the application of a force on it, then, work is said to be done on the…

Q: 90 N F Example 4.1 30° 30 kg A person pulls a 30 kg crate 10 m across a level floor using a rope…

A: Use work done general formula i.e It is given by the dot product of force and dis

Q: An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and…

A:

Q: Example : A farmer hitches her tractor to a sled loaded with firewood and pulls it a distance of 20…

A:

Q: A 5.0-kg block that initially has a speed of 6.0 m/s is moving in a straight line on a level surface…

A: Given  mass of block(m)=5 kg Initial speed of block (vi)=6.0 m/s final speed of block(vf)=0 work…

Q: 3. A 10-N force is applied to push a block across a frictional surface at constant speed for a…

A: Work done is defined as W = Ftotal × d Ftotal =  Total force acting d = displacement

Q: Q4] a-How much work is done by the horizontal force F1-150N on the 20 Kg block when the force pushes…

A: BY Work energy theorem, External work= change in P.E                                       +…

Q: 1. The force on an object varies according to the position of the object as shown on the graph. a)…

A: Concept The area under the F vs x graph gives the work done by the force. When both x and F…

Q: When a 0.0577-kg golf ball takes off after being hit, its speed is 42.6 m/s. (a) How much work is…

A: work done by on the ball equals the change of energy of ball.

Q: 5. A person pulls an object of mass 40 kg as far as 20 m above a flat floor at a constant speed. The…

A: Mass of object =40kg Distance covered = 20m Force applied by man = 370N Coefficient of kinetic…

Q: Ralph uses a 2000 N force to push his car along a road for 1000 m. It takes him500 s to do this a-…

A: (a) The work done is given by, W=Fd Here, F is the force applied and d is distance travelled by the…

Q: m. m A mass m, = 4.1 kg rests on a frictionless table and connected by a massless string over a…

A: Here it is given that a friction less table consists both mass having the value M1= 4.1 kg and…

Q: Jeff lifts a 6000-g metal ball from the ground to a height of 35 inches close to his body. What is…

A: Given: mass of ball m = 6000 g = 6 kg height h = 35 inch = 35*0.0254 m = 0.889 m

Q: A 18 g plastic ball is moving to the left at 27 m/s . How much work must be done on the ball to…

A: Step 1The ball is moving, so all the energy possessed by it can be considered as kinetic, which is…

Q: A surfer is catching a wave. Suppose she starts at the top of the wave with a speed of 1.4 m/s and…

A: Given: Mass of surfer(m) = 59 kg vi=1.4 m/s vf=9.4 m/s Vertical height (h)= 2.7 m

Q: The driver of a 760.0 kg car decides to double the speed from 21.1 m/s to 42.2 m/s. What effect…

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Q: Sheryl is driving along the highway in an 894 kg car. She initially drives at a velocity of 50 m/s.…

A:

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.