It takes a force of 825 N to push a car through terrain. Two students push the car 35 m. a. How much work is done? b. After a storm, the force needed to push the car doubles. In what How much does the work done by the students change?

Q: How much work must be done to stop a 1100-kg car traveling at 111km / h ? (Hint: You will need to…

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Q: A 2.0 kg book is lying on a 0.75-m-high table. You pick it up and place it on a bookshelf 2.3 m…

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Q: A man pushes a lawn mower with a horizontal force of 138 N. If he pushes the lawn mower 5.2 m in 15…

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Q: ) A car has a mass of 1000 Kg and moves at a speed of 15 m/s. a) Does the car have kinetic energy?…

A: Answer:- Given  Mass of a car = 1000 kg  (a)  Initial speed (u) = 15 m/s  Initial Kinetic energy of…

Q: Q1. A force of 7N as on an object. The displacement is, say 8 m, in the direction of the force. Let…

A: Work done on an object is given by the formula, Work done = (Force)(Displacement), where the…

Q: An elevatoris able to raise 1,000kg to a height of 40m in 15 seconds.  a. How much work does the…

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Q: A box is being pushed to the right with 45N of force. The box travels a total of 2.8m to the right.…

A: Given data The push force is F=45 N The distance covered is d=2.8 m The frictional force is FR=13 N…

Q: A boy pulls a sled with a force of 10 lb for 100 ft. The rope attached to the sled is at an angle of…

A: Given: force applied by boy, F = 10 lb = 10(4.44822) = 44.4822 N  (since 1 lb force = 4.44822 N)…

Q: A man lifted a 281.5-kg object through a distance of 17.1 cm using only his teeth. a. How much work…

A: a) The work done is given by,

Q: A 45.0 kg student climbs a 5.45 m long rope and stops at the top.(a) What must her average speed be…

A: Given Data : The mass of the student is given as m = 45 Kg. The distance climbed by the student on…

Q: You lift your 515 g cup of coffee from the table a total distance of 35.0 cm and hold it there. (a)…

A: Given quantities: mass of the cup (m) = 515 g = 0.515 kg Net displacement (s) = 35 cm = 0.35 meter…

Q: A 600 N hiker carries a 2.0 kg knapsack up a trail. After 30 minutes, the hiker is 300 m higher than…

A: We  know that when an object is on the height of h from the ground the  Gravitational potential…

Q: QA 70 N force is applied horizontally to 10 Kg block at rest for displacement of 200 m 10 kg across…

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Q: A box is being pushed to the right with 112N of force. The box travels a total of 1.5m to the right.…

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Q: A person pulls a toboggan for a distance of 29.6 m along the snow with a rope directed 22.1 ° above…

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Q: 1. What is the work formula? a. What is the unit of measurements that each has to be in?…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A student who weighs 569N climbs a stairway (vertical height of 4.3 m) in 26 s. (a) How much work is…

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Q: A student who weighs 546 N climbs a stairway (vertical height of 4.5 m) in 24 s. (a) How much work…

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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: 1300 kg truck is initially moving at 25 m/s. How much work will need to be done to bring the truck…

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Q: How much work must be done to stop a 1200-kg car traveling at 115 km/h? (Hint: You will need to…

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Q: needed by Matthew to move the box uniformly along the inclined ramp? b.) How much work is done by…

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Q: Q7. You push a 100-kg file cabinet up on a ramp with a force of 500 N, your push force is parallel…

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Q: A woman is rollerblading through a park. If she starts from rest, and then reaches a kinetic energy…

A: Since the woman is starting from rest, her initial kinetic energy will be zero. Final kinetic energy…

Q: In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using…

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Q: A 1000kg elevator, initially at rest, suffers a catastrophic mechanical failure and free falls 20m…

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Q: 3) A 600N block is lifted by the friction free pulley system shown. a) How many strands of rope…

A: According to Newton second law  F = ma

Q: A 2.7 kilo bag of sugar is on a counter. (a) What is the weight of the bag? (b) How much work is…

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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: A student who weighs 547 N climbs a stairway (vertical height of 2.9 m) in 21 s. (a) How much work…

A: weight = mg  = 547 N Height = 2.9 m time (t) = 21 seconds   A) Work done = change in potential…

Q: A helicopter lifts a 65 kg astronaut 18 m vertically from the ocean by means of a cable. The…

A: F   to denote the upward force exerted by the cable on the astronaut. The force of the cable is…

Q: A 45.0 kg student climbs a 5.45 m long rope and stops at the top.(a) What must her average speed be…

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Q: 4. A 200 kg boulder slides down a hill. At the bottom of the hill its velocity is 2.2 m/s. a. What…

A: Mass of boulder slide =200kg Velocity at bottom = 2.2m/s

Q: A force of 45.6 lb is used to push a box 10.3 ft across a level floor. (a) How much work was done on…

A: Given,  Force acting on the box, F = 45.6 lb Displacement of box, x = 10.3 ft For calculating work…

Q: A student who weighs 553 N climbs a stairway (vertical height of 4.2 m) in 20 s. (a) How much work…

A: Answer:-  Given  Force acting on the student (F) = 553 N  Vertical height (h) = 4.2 m  Time (t) = 20…

Q: A 1000 kg elephant is to be lifted 10m above the ground. a. How much workis required to slide the…

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Q: An object that measured a mass of 0.89 kg started moving at a speed of 3.89 m/s. After some time,…

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Q: Matthew pushes a box of toys along a 5 m long ramp that is inclined 3 m high as shown in the figure…

A: Disclaimer: “Since you have asked posted a question with multiple sub-parts, we will solve the first…

Q: A child does 350 J of work while pulling a box from the ground up to his tree house with a rope. The…

A: Given information: The work done by the child (W) = 350 J The height of the tree house (h) = 8.4 m…

Q: A person pulls a toboggan for a distance of 33.7 m along the snow with a rope directed 21.2° above…

A: Given Data: Distance covered, Rope inclination angle,   Tension,

Q: A person pulls a toboggan for a distance of 37.8 m along the snow with a rope directed 21.5 ° above…

A: Given data: A person pulls a toboggan for a distance of, d=37.8 m The direction of the rope with the…

Q: A 65.0-kg runner has a speed of 5.20 m/s at one instant during a long-distance event. (a) What is…

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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.