What problems are there with the statement “A force is a push that acts through a touch”?
Q: Starting from rest, a frictionless mini cart was pushed with a 110-N force for about 12 seconds. It…
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Q: Calculate the average force a bumper would have to exert to bring a 1000-kg car torest in 20 cm when…
A: Given data: The mass is m = 1000 kg The initial speed is u = 8 m/s The displacement is h = 0.20 m…
Q: (d) 600 N A 2300 N-m B Lm (b) 800 N 200 N.m 900 N.m B 400 N A rce for the beam is [ NĮ. point A to…
A: The equivalent force for the beam is 600 Newton Torque ×distance = constant
Q: a) Calculate the force needed to bring a 800 kg car to rest from a speed of 85.0 km/h in a distance…
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Q: a. Calculate the force (in N) needed to bring a 1050 kg car to rest from a speed of 80.0 km/h in a…
A: Mass of the car,
Q: 1. A 10-kg rock and a 20-kg rock are thrown upward with the same initial velocity and experience no…
A: When a rock is thrown upwards with initial velocity v and no air resistance is present, then there…
Q: A the x-axis while being subgjected te particle moves along variable for ce. The force is described…
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Q: A sailboat has a mass of 4000 kg. The sail generates a forward for of 13,000 N. The water provides a…
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Q: Which one of the following choices is an example of a non-conservative force? gravitational force…
A: We know that, Conservative force : The conservative force does not depend on the path.…
Q: What is the magnitude of the normal force exerted on the ant when the ball's speed is 2.5 /?
A: The diameter of the beach ball D= 60 cm =0.6 m The radius of the sphere r =0.3 m The mass of the…
Q: a) Calculate the force needed to bring a 1050 kg car to rest from a speed of 95.0 km/h in a distance…
A: a)The work energy theorem is,
Q: Flag question Let a and b be two unit vectors. a.(a+ (axb)) (a x b) + (bxa) a. (a x b) ax (a.b)…
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Q: Two objects are attracted to each other. Let's say the attractive force between them is 'F'. If the…
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Q: A block of mass 2.11 kg is accelerated across a rough surface by a rope passing over a pulley, as…
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Q: The 70.0-kg swimmer shown starts a race with an initial velocity of 1.25 m/s and exerts an average…
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Q: estimated to be .30. (a) Use these data to determine the speed of the car when the driver slammed on…
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Q: dropping the container from different heights,
A: First we will focus on Newton's laws of motion. The first law states that an object at rest will…
Q: A man pushing a crate of mass m = 92.0 kg at a speed of v = 0.875 m/s encounters a rough horizontal…
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Q: The model shows an experiment where two metal balls were dropped into a block of clear gelatin.…
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Q: A person with mass m is skateboarding across level ground on earth with a speed vo when they come to…
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Q: A man pushing a crate of massm = 92.0 kg at a speed of v = 0.875 m/s encounters a rough horizontal…
A: Given: The mass of the crate=m=92.0 kg The speed of the crate=v=0.875 m/s The length of the…
Q: = 75 N for a distance Ax = 2 m along a (mostly) A hand pushes block A (ma =3 kg) with a constant…
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Q: A man pushing a crate of mass m = 92.0 kg at a speed of v=0.870 m/s encounters a rough horizontal…
A: Mass of the crate (m)=92 kgInitial speed (vi)=0.870 m/sLength of surface (L)=0.65 mCoefficient of…
Q: while sitting inside a boat you are pulling another identical boat with a rope. As a result of that…
A: The identical empty boat will have greater speed.
Q: What average net force is required to bring a 1500-kg car to rest from a speed of 100 km/h within a…
A: Given, Mass of car = 1500 kg Speed= 100 km/h Distance =55m We need to calculate, Average net force…
Q: Whether or not an object (such as a plate, glass, or bone) breaks upon impact depends on the average…
A: Given: Mass of the glass figure = 1.2 Kg Average force on the glass = 330 N Time taken by the glass…
Q: Calculate the force (in N) needed to bring a 1000 kg car to rest from a speed of 80.0 km/h in a…
A: First, we need to convert the speed from kilometers per hour to meters per second because the…
What problems are there with the statement “A force is a push that acts through a touch”?
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- Someone please helpOn a frictionless surface, a man wants to move forward, can it move forward? ExplainTwo boxes of different mass are at rest. If both boxes are acted upon by equal force, which of the following statements is then true? The change in kinetic energy is dependent on the amount of time each box is pushed. The change in momentum is dependent on the distance each box is pushed. The change in kinetic energy is dependent on the distance each box is pushed. If both boxes are pushed the same distance, then both boxes will have the same final momentum. If both boxes are pushed the same amount of time, then the lighter box will have the smaller final kinetic energy. Submit Answer Tries 0/2
- What is the initial velocity of an arrow shot from a bow that has been stretched for 0.60m with an average force of 190N? The arrow has a mass of 0.050kgStarting from rest, a 2 kg object acquires a speed of 12 m/s in 2 seconds. Calculate the net force (in Newtons) acting on the object. Your Answer:A 0.085kg arrow is pulled back 0.60m against a bowstring. If the force constant of the bowstring is 1250 N/m, with what velocity will the arrow leave the bow?
- What does it mean for an object to be more elastic? O if the object offers more resistance to the deforming force and returns back to its original shape quickly after the force is removed O if the object offers less resistance to the deforming force and returns back to its original shape after the force is removed O if the object offers less resistance to the deforming force and returns back to its original shape slowly after the force is removedDwayne ‘The Rock’ Johnson needs to escape from the fourth floor of a burning building (in a movie). He ties a rope around his waist and ties the other end to a 63 kg desk. Then he climbs out of a window and begins to lower himself down. The rope becomes taught when he lets go of the window sill. Then the desk begins to slide on the floor and he starts to accelerate downwards (starting from rest). Dwayne has a mass of 118 kg. The smooth window sill acts as a frictionless pulley. The desk is 10 m from the window. The kinetic friction of the desk sliding on the flooris 370 N. How fast is he travelling when th desk reaches the window?(Hint: Unbeknownst to the audience, The Rock aced Physics 1200 and knows that the tension in the rope is not 370 N)7. Conceptual question: A block is given an initial push and is sent up an incline plane as shown. You time the trip up to its maximum point up the plane, and again time the trip down the plane (on its way back). To your surprise, the time "down" is longer than the time "up". Explain: Note that the plane has friction. What would you expect if the plane was frictionless?
- A person starts from rest at the top of a large frictionless spherical surface, and slides into the water below (see the drawing). At what angle does the person leave the surface? (Hint: When the person leaves the surface, the normal force is zero.) Number Units 8An advertisement shows a 1239 kg1239 kg car slowly pulling at constant speed a large passenger airplane to demonstrate the power of its newly designed 63.7 hp63.7 hp (horsepower) engine. During the pull, the car passes two landmarks spaced 25.0 m25.0 m apart in 14.3 s.14.3 s. The passenger plane being towed is a Boeing 707 with a total weight of 62.5 tons.62.5 tons. Calculate the force that opposes the motion. Assume that the efficiency of the car is such that 24.2%24.2% of the engine power is available to propel the car forward. How much work is performed by the car on the airplane during this time?How much work is performed by the airplane on the car during this time?Questions-Problems-on-NLM.pd x O File C:/Users/Lenovo/Desktop/Gwyneth/Questions-Problems-on-NLM.pdf Sign in of 17 A) Read aloud V Draw F Highlight Erase A 6 (5) A 50-kg parachutist descends at a steady 20 km/h. What force does air exert on the parachute? (6) A 400-kg bear grasping a vertical tree slides down at constant velocity. What is the friction force that acts on the bear? 9:51 AM