For the normal force in the drawing to have the same magnitude at all points on the vertical track, the stunt driver must adjust the speed to be different at different points. Suppose, for example, that the track has a radius of 2.24 m and that the driver goes past point 1 at the bottom with a speed of 28.3 m/s. What speed must she have at point 3, so that the normal force at the top has the same magnitude as it did at the bottom?

Q: A metallic box begins at rest at point 1 at a height of 5R, where R is the radius of the circular…

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Q: A 1500kg car is driving on the road at a speed of 15 m/s. The driver applies the brakes, bringing…

A: Given- Mass of car , m = 1500 kg Initial speed  of car, u = 15 m/s Final speed of car , v = 0 m/s…

Q: Ezra geta excited and starta to awing the ball fanter around the circle. When the ball is at the…

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Q: A roller-coaster car has a mass of 1200 kg when fully loaded with passengers. as the car passes over…

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Q: A 4.4 cm diameter, 24 g plastic ball is attached to a 1.2 m long string and swung in a vertical…

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Q: 1) A block (block 2) of mass m2 = 1.3 kg hangs from the end of a (massless) string which runs over a…

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Q: A 510.0 g ball moves in a vertical circle on a 82.0 cm-long string. If the speed at the top is 4.10…

A: Given: The mass of the ball is 510 g = 0.51 kg. The speed of the ball at the top of the circle is…

Q: A roller coaster car goes around a loop-the-loop, so it is upside down at the top at point A. The…

A: At the highest point A the normal force is balanced by the centripetal acceleration. Therefore,…

Q: A roller-coaster car has a mass of 1000 kg when fully loaded with passengers. As the car passes over…

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Q: You are designing the section of a roller coaster ride shown in the figure. Previous sections of the…

A: The initial speed of the sider at the top of the incline is the height of the top of the incline is…

Q: A racetrack has the shape of an inverted cone, as the drawing shows. On this surface the cars race…

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Q: A roller-coaster car has a mass of 1220 kg when fully loaded with passengers. As the car passes over…

A: Given data- The mass of the roller coaster is m=1220 kg Radius of he circular hill is r=18.1 m

Q: please answer with steps

A: Apply the conservation of energy between the top of the inclined and the top of the hump.

Q: As a roller coaster crosses the top of a 50 m diameter loop the loop, it’s apparent weight is the…

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Q: Consider the diagram for question 2. A person of mass 70.5 kg is on a roller coaster at the top of…

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Q: The diagram shows a box moving down a green ramp, beginning from rest at the top of the ramp and…

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Q: A ball is on the end of a string. The ball is being swung in a vertical circle at a constant speed.…

A: Given Data: The length of the string s: l=1.16 m The mass of the ball is: m=1.60 kg The maximum…

Q: A person of mass 60.0 kg is riding on a Ferris wheel as illustrated. Draw the free body diagram for…

A: Draw the free body diagram and then apply the Newton's second law. Also use the centripetal…

Q: A box is launched up a rough incline with an initial velocity, vo = 6.7 m/s, as in the figure below.…

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Q: In an amusement park roller coaster ride, a car starts from rest at point A and races through a…

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Q: The mass of a roller coaster car, including the riders, is 512 kg. The path of a portion of the ride…

A: SOlution: Given that m = 512 kg VA = 12.8 m/s VB = 22.5 m/s rA =18.8 m rB =10.2 m rC =6.6 m

Q: A Ms. Lamb rode her bike inside a loop-the-loop at a constant speed greater than the minimum to…

A: Hey dear Fg will be same for all the three points see how

Q: An engineer is trying to determine the speeds at which she can swing a 400kg wrecking ball without…

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Q: You are riding a dirt bike around a vertical loop that is in a spherical cage.  In order for the…

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Q: How much force does the seat push up on a 80kg pilot as he pulls out of a vertical loop of radius…

A: Given data-                     pilot mass (m) = 80 Kg                   loop radius (r) = 310 m…

Q: A roller coaster goes inverted around a loop. The radius of curvature of the track is 8.0m. If a…

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Q: A crate is given an initial speed of 2.2 m/s up the 24 degree plan. Assume uk= 0.12. How far up the…

A: Initial speed (u) = 2.2 m/s Angle of inclination (theta) = 24° Coefficient of kinetic friction= 0.12…

Q: A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius r. A…

A: Given:-  A roller coaster at an amusement park has a dip that bottoms out in the vertical circle of…

Q: Mr. B does a demonstration with a bucket of water tied to a 1.4-meter long string. The bucket and…

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Q: 14. A roller coaster at an amusement park has a dip that bottoms out in a vertical circle of radius…

A: We have the given figure as-

Q: Suppose that a 1800 kg car passes over a bump in a roadway that follows the arc of a circle of…

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Q: A 0.6 kg ball moves in a vertical circle on a 1m long string. If the speed at the top is 3.80 m/s,…

A: The weight of the ball is calculated as, W=mgW=0.6 kg9.8 m/s2W=5.88 N (a) The Tension in the string…

Q: The diagram shows a box moving down a green ramp, beginning from rest at the top of the ramp and…

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Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.