The goal of a worker is to slide a 20-kg crate up a 2.5 m-long inclined at 25°. The worker was confident that he can do this by giving it an initial speed of 4.5 m/s at the bottom and letting it go. However, the crate slides only 1.7 m up the ramp, stops, and slides back down. d. What is the work done by the friction force while mass is sliding down the inclined plane? e. What is the work done by the gravitation force while the mass is sliding down the inclined plane? f. What is the kinetic energy of the mass when it just reaches the bottom of the inclined plane?

Q: To stretch a spring 9.00 cm from its unstretched length, 19.0 J of work must be done. (a) What is…

A: stretch in spring (d) = 9 cm = 0.09 m work done = 19 J

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A: Since there are multiple sub-parts posted, we will answer the first three sub-parts for you. If you…

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A: Given data: Mass (m) = 20 kg Constant external Force (F) = 50 N Distance (s) = 3.00 m Initial…

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A:

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A:

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A:

Q: A truck travels uphill with constant velocity on a highway with a 8.5° slope. A 45-kg package sits…

A: a)  As the packet is moving with a constant velocity, the initial and final kinetic energy will be…

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A: The mass of the box is m = 64 kg. The force acting on the box is F = 143 N. The value of the angle…

Q: in. An Eskimo returning from a successful fishing trip pulls a sled loaded with salmon. The total…

A:

Q: When a 3600-lb automobile runs out of gas, it is pushed by its unhappy driver and a friend a quarter…

A: M = 3600 lb F =175 lb d = 0.250 mi = 1320 ft t = 15 min = 15 × 60 = 900 s

Q: (a) Calculate the force the woman exerts to do a push-up at constant speed, taking all data to be…

A: Given:  m = 50 kg  d = 0.9 m  d' =  1.5 m

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A:

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A:

Q: 6.20 • A 4.80 kg watermelon is dropped from rest from the roof of an 18.0 m-tall building and feels…

A: Given: The mass of the watermelon is 4.80 kg. The height of the building is 18.0 m.

Q: A worker pushes a 30.0-kg crate a distance of 4.5 m along a level floor at constant velocity by…

A:

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

A: Hi, as this problem contains multiple sub-parts, hence the first three sub-parts will be solved for…

Q: Suppose you lift a 20 kg box by a height of 1.0 m.a. How much work do you do in lifting the box?…

A:

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A:

Q: A factory worker pushes a 25.0-kg crate a distance of 6.0 m along a level floor at constant velocity…

A: The frictional force is given as f=μN=μmg…

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A:

Q: • You push your couch a distance of 4 m across the living room floor with a force of 200 N. The…

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Q: To stretch a spring 5.00 cm from its unstretched length, 25.0 J of work must be done. (a) What is…

A:

Q: A small 65g toy rocket is launched straight up from the ground at 120 km/h (a) What is the kinetic…

A: Given The mass of the rocket is m=65 g=65×10-3 kg. The initial velocity of the rocket is v=120…

Q: A 6.50 kg box slides 4) from the top of a ramp to the bottom at a constant speed, as shown in the…

A: recall Work-kinetic energy theorem ∑W=∆KEHere ∆KE=0 as v=constant

Q: 30. Suppose the ski patrol lowers a rescue sled and victim, having a total mass of 90.0 kg, down a…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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A:

Q: A grocery cart is pulled along a rough horizontal surface by a horizontal force of 6.0 N. It moves…

A: Given, F = 6 N d = 7 m

Q: 6.2 • A tow truck pulls a'car 5.00 km along a horizontal roadway using a cable having a tension of…

A:

Q: A rock climber wears a 7.5 kg backpack while scaling a cliff. After 30.0 min, the climber is 8.2 m…

A: Given: weight of the backpack=7.5 kg; t=30 min; d=8.2m; To find: (a) work done by the climber on the…

Q: A block of mass 15.0 kg is pulled up from rest on a rough incline. The pulling force F =100.0 N that…

A:

Q: A small 25g toy rocket is launched straight up from the ground at 144 km/h (a) What is the  kinetic…

A: Given : m = 25g = 0.025 kg v = 144 km/h = 40 m/s h = 220 m

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A:

Q: A plane having a mass of 22,000kg lands on an aircraft carrier. The plane is moving horizontally at…

A: The work done can be written as W=Fdcosθ where F= Force, d= displacement, and θ= angle between force…

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A: (a) A factory worker pushes a crate along floor at constant velocity horizontally; to maintain…

Q: A 10 kg crate is pulled along a rough inclined plane at an initial velocity of 1.5 m / s. The…

A: Given The mass of crate is m=10 kg. The initial velocity of the crate is v=1.5 m/s. The pulling…

Q: A 6.00-kg watermelon is dropped from rest from the roof of a 30.0-m-tall building and feels no…

A: When a body is made to fall from a height h, assuming no air resistance, then Potential energy…

Q: A 70.0 kg skier , starting with a speed of 1.00 m/s skies down a rough 17.0 m high ski hill and then…

A: Mass of skier (m) = 70 kg Initial speed (vo) = 1 msHeight of hill (H) = 17 m velocity at the bottom…

Q: During a flood, a rescue helicopter was used to lift a 79-kg person to safety. The person has an…

A:

Q: A truck travels uphill with constant velocity on a highway with a 7.5° slope. A 35-kg package sits…

A:

Q: 6.20 A 5.10-kg watermelon is dropped from rest from the roof of a 29.0-m-tall building and feels no…

A: mass, m = 5.10 kg height, h = 29 m

Q: A 5-kg watermelon is dropped from rest from the roof of a 22-m tall building and feels no…

A: Given : Mass of a watermelon (m) = 5 kg Initial speed (vi) = 0 Height of building (h) = 22 m

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.