When landing after a spectacular somersault, a 40.0-kg gymnast decelerates by pushing straight down on the mat. Calculate the force she must exert if her deceleration is 7.00 times the acceleration due to gravity. Explicitly show how you follow the steps in the Problem-Solving Strategy for Newton’s laws of motion.

Q: A 93300 kg train travels North with a constant speed of 7.78 m/s for 5 hours. The train's brakes are…

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Q: A 2-kg object is thrown upwards with an initial velocity of 16 m/s. At the peak of the trajectory,…

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Q: What is a common example of a nonconservative force? O tension O gravity O normal force O friction

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Q: 120-lb person stands on a bathroom spring scale while riding in an elevator. If the eleva- tor has…

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Q: - A 6.9 kg object undergoes an acceleration of 3.9 m/s2. (a) What is the magnitude of the resultant…

A: (a)  Consider an object of mass(m) 6.9 kg going with the acceleration(a) of 3.9 m/s2. Write newton’s…

Q: If the rocket sled  starts with onlyone rocket burning, what is the magnitude of its…

A: (a) Apply Newton’s second law

Q: At the instant a race began, a 67-kgkg sprinter exerted a force of 700 NN on the starting block at a…

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Q: A contestant in a winter sports contest pulls a 41 kg block of ice in the positive horizontal…

A: Given Mass M=41kg μs=0.1 μk=0.03

Q: Consider a 69 kg high-jumper. 1) Calculate the magnitude of the force, in newtons, the jumper must…

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Q: While skydiving, Dee Seperate opens her parachute and her 53.4-kg body immediately accelerates…

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Q: How to I calculate force from my compression spring ping pong ball launcher

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Q: A woman of mass 58.4 kg is standing in an elevator. If the elevator floor pushes up on her feet…

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Q: When landing after a spectacular somersault, a 55.0 kg gymnast decelerates by pushing straight down…

A: Given  Mass m=55kg Deacceleration a=8×9.8=78.4 m/s2

Q: An object with a mass of 1.5 Kg accelerates 10.0 m/s2 when an unknown force is applied to it. What…

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Q: can you deduce the equation that relates mass and acceleration  with the constant force

A: Introduction: According to Newton's second law of motion, the force on the object is equal to the…

Q: A 1500 kg car moving at 20 km/h is accelerated ata constant rate of 4 m/s2up to a speed of 75…

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Q: A 4.8-kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket…

A: F=ma+g

Q: In 1988, a very large telephone constructed by a Dutch telecommunications company was demonstrated…

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Q: A heavy box containing four laptops worth 700,000 pesos is being delivered. From the delivery van,…

A: Down the incline force = mgSin30° = 2×9.81×Sin30° = 9.81 N  Normal force = mgCos30°  N =…

Q: World-class sprinters can accelerate out of the starting blocks with an acceleration that is nearly…

A: Given data: The mass of the sprinter, m=58 kg. The horizontal acceleration of the sprinter, a=15…

Q: An elevator, moving upward, decreases in speed from 8.41 m/s to 1.70 m/s in 2.02 s. Assuming…

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Q: Assume that the mass of a given snowflake is 3 mg (milligrams) and that its terminal velocity is 1…

A: Mass of the snowflake, m = 3 mg = 0.003 g = 3 x 10-6 kg Terminal velocity, v = 1 m/s Acceleration…

Q: A clarinetist, setting out for a performance, grabs his 3.450 kg clarinet case (including the…

A: In this case, two forces acting on the clarinet case, one is the force by the clarinetist in the…

Q: The wheels of a midsize car exert a force of 2100 Nbackward on the road to accelerate the car in the…

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Q: A clarinetist, setting out for a performance, grabs his 3.070 kg clarinet case (including the…

A: The free-body diagram can be drawn as

Q: 4. A6 kg object placed on a frictionless, horizontal table is connected to a string that passes over…

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Q: A crate of mass 50 kg slides on a horizontal floor under the action of an applied horizontal force…

A: (a) The acceleration  The forces that acts on the crate is the horizontal force that acts along the…

Q: What magnitude net force is requred to accelerate to a 1200-kg car uniformly from 0 m/s to 27.0 m/s…

A: The net force required to accelerate a car of mass 1200 kg is calculated using following…

Q: When landing after a spectacular somersault, a 50.0 kg gymnast decelerates by pushing straight down…

A:

Q: What are some differences between the forces acting on a person when they are doing a squat vs a…

A: SQUAT:- Squatting is a popular exercise that targets the muscles in the legs, lower back, and core.…

Q: A clarinetist, setting out for a performance, grabs his 3.210 kg clarinet case (including the…

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Q: Two forces act on an 5 kg object: F1 = 60N applied at the origin in the direction of positive x-…

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Q: A 490 kg rocket sled can be accelerated at a constant rate from rest to 2000 km/h in 2.1 s, What is…

A: mass (m) = 490 kg initial velocity (u) = 0 m/s Final velocity (v) = 2000 km/hr time (t) = 2.1…

Q: What would be de acceleration of a person that jumps from an airplane if the force due to the…

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Q: A clarinetist, setting out for a performance, grabs his 3.490 kg clarinet case (including the…

A: When the clarinetist grabs the clarinet case in vertical direction with some upward force, a…

Newton's First Law of Motion

If a very smooth ball is rolled down an inclined surface with zero friction, the ball will continue to roll indefinitely for an infinite time, in an attempt to reach to the same height on the opposite hill!