Use the work–energy theorem to solve each of these problems. You can use Newton’s laws to check your answers. A skier moving at 5.85 m/s encounters a long, rough, horizontal patch of snow having a coefficient of kinetic friction of 0.220 with her skis. How far does she travel on this patch before stopping?   Suppose the rough patch in part A was only 2.85 m long. How fast would the skier be moving when she reached the end of the patch?   At the base of a frictionless icy hill that rises at 25.0∘ above the horizontal, a toboggan has a speed of 12.3 m/s toward the hill. How high vertically above the base will it go before stopping?

Q: A large cruise ship of mass 7.00 ✕ 107 kg has a speed of 12.4 m/s at some instant. (a) What is the…

A: Givenm=7×107kgv=12.4m/s

Q: ce on a 1700-kg coaster train? Part B How much work is done by friction during the time the…

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Q: Starting from rest, a crate of mass m is pushed up a frictionless slope of angle 0 by a horizontal…

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Q: A puck of mass 0.110 kg slides across ice in the positive x-direction with a kinetic friction…

A: Since you have asked question with multiple sub-parts in a single request, we would be answering…

Q: A box m=73 kg is being pulled by a constant force F=187 newtons at an angle of 29 degrees. The…

A: Given data The mass of the box is m = 73 kg The magnitude of the constant force is F = 187 N The…

Q: You drop a ball of weight 5.00 N from rest from a certain height above the floor into free fall.…

A: The potential energy is a type of energy which depends upon the relative position of the body. The…

Q: At t = 1.0 s, a 0.54 kg object is falling with a speed of 6.5 m/s. Att = 2.0s, it has a kinetic…

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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…

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

Q: a) What is its potential energy before sliding down the incline? b) What is the velocity of the…

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Q: A 2.50 kg block starting from rest slides 12.5 m down an inclined plane which makes an angle of 25…

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Q: Shown below is a box of mass m1 that sits on a frictionless incline at an angle above the horizontal…

A: (a) Write the formula for the potential energy of a mass m above height h from the ground.

Q: A sledge loaded with bricks has a total mass of 18.0 kg and it pulled at constant speed by a rope…

A: Mass (M) = 18.00 kg Distance (s) = 20.00 m Coefficient of kinetic friction = 0.500

Q: A 13000 N elevator is lifted with a force of 16000 N against 2000 N of friction a distance of 19…

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Q: A baseball is thrown from the roof of h = 21.9-m-tall building with an initial velocity of magnitude…

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Q: To push a 29.0 kg crate up a frictionless incline, angled at 25.0° to the horizontal, a worker…

A: The energy of the crate at the bottom of the incline, just before the worker starts applying force=0…

Q: A sledge loaded with bricks has a total mass of 19.0 kg and is pulled at constant speed by a rope…

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Q: A cyclist is coasting at 18 m/s when she starts on a 450 m long slope that is 40 m high. The cyclist…

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Q: At t = 1.0 s, a 0.62 kg object is falling with a speed of 6.5 m/s. At t = 2.0 s, it has a kinetic…

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Q: A 49.5-kg athlete leaps straight up into the air from a trampoline with an initial speed of 9.1 m/s.…

A: At maximum height the velocity of the athlete will be zero. According to the conservation of energy…

Q: Part E Calculate the total work done on the suitcase. A luggage handler pulls a 20.0 kg suitcase up…

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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…

Q: Use your energy equations to determine what height will a 0.042 kg baseball rise if it’s tossed…

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Q: A sledge loaded with bricks has a total mass of 18.0 kg and is pulled at a constant speed by a rope…

A: Draw the free-body diagram of the sledge.

Q: Two forces, of magnitudes F = 80.0 N and F = 50.0 N, act in opposite directions on a block, which…

A: Given: The magnitude of the first force (F1) is 80 N. The magnitude of the second force (F2) is 50…

Q: d. Two forces of the same magnitude act on a box, causing the box to move across the floor in the +x…

A: The work done by F1 in moving the box through a displacement s,

Q: weightlifter lifts a 70 kg barbell a vertical distance of 1.51 m in a time interval of 2.2 s? (a)…

A: Given Mass m= 70 kg Displacement s = 1.51 m Time taken t = 2.2 Sec

Q: <HW4 - CH7 and CH8 Problem 7.68 A compound bow in archery allows the user to hold the bowstring at…

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Q: A truck travels uphill with constant velocity on a highway with a 8.0° slope. A 35-kg package sits…

A: M= 35 kg  S= 295m  Angle is 8°

Q: A 2.50 kg block starting from rest slides 12.5 m down an inclined plane which makes an angle of 25…

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Q: A supermarket pushcart is being pushed at 45 degrees with respect to the horizontal  from the…

A: (a) The force required to move the cart is,  F=μmgcosθ Here, μ is coefficient of friction between…

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: Where would the bicyclist…

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Q: A large cruise ship of mass 6.30 x 107 kg has a speed of 11.8 m/s at some instant. (a) What is the…

A: Given: Mass of ship m=6.30×107 kg, Speed of ship v=11.8 m/s, Displacement s=3.90 km. Required: (a)…

Q: a) What is the acceleration of the box? b) How much work is done by the frictional force on the…

A: Given: Mass of a crate, m=12.0Kg Initial speed, vi=2.5m/s Pushing force, F=150N The incline angle,…

Q: As we noted, a desert locust is an excellent jumper. Suppose a 2.0 g locust leaps straight up,…

A: a) The working equation is, Kf+(Ug)f+∆Eth=Ki+(Ug)i Therefore,…

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: Starting from rest, a 2.1x10-4 kg flea springs straight upward. While the flea is pushing off from…

A: Mass of flea = 2.1×10-4 kg Average upward force = ma=0.31 N Work done by this force on flea…

Q: The engine in an imaginary sports car can provide constant power to the wheels over a range of…

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Q: block with mass ?=?.? [kg] slides head-on to a spring with spring constant ?=??? [N/m]. When the…

A: The mass of the block = m The spring constant =K N/m The compressed length = x cm= x/100 meter The…

Q: A sledge loaded with bricks has a total mass of 17.9 kg and is pulled at constant speed by a rope…

A: Solution:given that m = 17.9 kg angle  =19.4 degree d = 20.4 m coeff of friction = 0.5

Q: A sledge loaded with bricks has a total mass of 18.6 kg and is pulled at constant speed by a rope…

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Q: A-C please!

A: Given information: Here, m is the mass of the loaded sledge, θ is the angle rope makes with the…

Q: 30

A: The work done on the object is given by, Work done=force×Distance  Power can be given by the…

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: Where would the bicyclist…

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

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Q: Consider a rope lowering a mass m=2.45kg at a constant speed v=8.73 m/s down a distance of d=5.72 m…

A: As the mass is lowering with the constant speed so the acceleration of the mass become zero. Apply…

Q: force

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Q: As shown, a green bead of mass 25 g slides along a straight wire. The length of the wire from point…

A: Conceptualize: Potential energy:  It is the energy possessed by a body by virtue of its position or…

Q: A sledge loaded with bricks has a total mass of 17.5 kg and is pulled at constant speed by a rope…

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.