Just before entering the tunnel, you notice the sign that says you must "use the tunnel with your bicycle on foot" but it is too late and you are descending through the tunnel with an initial speed of 6.6 km / h. The tunnel has a semicircular ramp with radius R = 6.3 m, and its mass combined with the mass of the bicycle is 60.3 kg.   a) Find the velocity at the bottom of the curve, point 2, for when the friction force is negligible.

Q: A small block of mass ?m is placed halfway up on the inside of a frictionless, circular loop of…

A: Given that:- Mass of block=m  Radius of circular loop=r

Q: Given:   A cube of mass m = 97 kg slides along a horizontal surface. The coefficient of friction…

A:

Q: A block slides with constant velocity down an inclined plane that has a slope angle theta. The block…

A: (a) Since the block is sliding down with constant velocity. Therefore, the friction force along the…

Q: Review. The gravitational force exerted on a baseball is 2.21 N down. A pitcher throws the ball…

A: Given data: The gravitational force exerted on the basketball is F1=2.21 N. The horizontal velocity…

Q: A point mass P is released from rest at A on a circular path in a vertical plane. Due to gravity it…

A: Consider the free-body diagram of the point mass P.

Q: A block has a mass of M equals 3.5 KG rests on a horizontal plane. The coefficient of static…

A: Given mass block = M =3.5 kg (rests on a horizontal plane) The coefficient of static friction = 0.15…

Q: steel cube is placed on a frictionless ramp, tilted at an angle 6 to the toor, and given a velocity…

A:

Q: A bowling ball weighing 71.2 N is attached to the ceiling by a 3.80-m rope. The ball is pulled to…

A: Given data The weight of the bowling ball is given as W = 71.2 N. The length of the rope is given…

Q: A box starting from rest slides down from the top of a frictionless plane which is 3m long and…

A: Given: A box starting from rest slides down from the top of a frictionless plane as shown in figure…

Q: A car travels on a circular road with radius R and banking angle 0 chosen so that at the speed v the…

A: This question is based on Laws of Motion topic. When the car moves on a banked road, a component of…

Q: Suppose the force F of a particle moving in a circular orbit is given by the product of uniform…

A: Given: F=vxrymz     ..... 1 This is force of a moving particle revolves in circular orbit. Using…

Q: To alleviate the traffic congestion between two cities such as Boston and Washington, D.C.,…

A:

Q: A tennis ball is hit into the air and moves along an arc. Neglecting air resistance, a. for…

A: Assume that the Tennis ball was hit from the ground at a speed u and an angle θ above the…

Q: A recently patented pile driver pounds piles into the ground by launching 15 kg bowling balls from a…

A: Given Data: The mass of a bowling ball is, m=15 kg The radius of a loop is, r=8 m The compression in…

Q: Estimate the effective value of g on the top of a mountain which is twice as tall as Mt. Everest,…

A:

Q: A boy shoves his stuffed toy zebra, which has mass ?,m, down a frictionless chute, starting at a…

A:

Q: A particle of mass m slides without friction on the inside of a cone. The axis of the cone is…

A:

Q: SCSU physics and astronomy student club has a recently established tradition of pumpkin drop, from…

A: According to the Newton's laws of motion , the final velocity (v) and the displacement () are…

Q: A toy car, of mass 0.10 kg, is travelling along a track which contains a vertical circular loop of…

A:

Q: A. A 0.1 kg rock is attached to a 2.0 m long string and swung in a horizontal circle at a speed of…

A: Given : m = 0.1 kg r = 2m v = 30 m/s

Q: Example: A race car going around a corner: Friction from the road holds the car in a circular path.…

A: (a) Child riding on a merry go round.  Friction (b) A ball at the end of a string being swing in a…

Q: In the figure, a stunt car driver negotiates the frictionless track shown in such a way that the car…

A: Given Data : The mass of the car is given as m = 1800Kg. The radius of the circular track is given…

Q: Find the maximum speed of a car traveling on a curved road and still remain in contact with the road…

A: Radius of curvature at point A RA=90 m Radius of curvature at point B RB=100 m0 Mass of car m=2 Mg…

Q: In the opposite figure, a ball of mass 1.5kg of rubber is attached to the end of a rope and then…

A: Given: m =1.5 kgr = 0.8 mv =40 m/s

Q: A stuntman whose mass is 57 kg swings from the end of a 4.8-m-long rope along the arc of a vertical…

A:

Q: A 0.15 kg baseball is thrown horizontally (parallel to the ground) from a height of 2 m with an…

A: UH=25 m/sUv=0 m/sR=UHt18=25×tt=1825t=0.72 s

Q: A fighter jet is flying in a vertical circular loop with a radius of 650 meters at a constant speed of…

A: (a) The formula for the centripetal acceleration is:

Q: A car with mass m drives on a circular vertical track in the given figure. A minimum speed Vm must…

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

Q: For the normal force in the drawing to have the same magnitude at all points on the vertical track,…

A:

Q: A small block with mass m is set on the top of an upside-down hemispherical bowl. If the coefficient…

A: To determine,at what angle measured from the vertical will the block begin to slide.given,the mass=…

Q: A roller coaster has a circular loop with a diameter (height) of 39 meters. When the coaster is…

A:

Q: Suppose a car rounds a curve at a constant speed of 13 m/s. The curve is a circular arc with a…

A: (a) The force due to road must exert on the car will be equal to the centripetal force,…

Q: A football player launches a ball of mass m from the origin (0,0) with an initial speed v, with at…

A:

Q: What speed

A:

Q: . Review. The gravitational force exerted on a baseball is 2.21 N down. A pitcher throws the ball…

A:

Q: A stuntman whose mass is 69 kg swings from the end of a 3.1-m-long rope along the arc of a vertical…

A: Given data: Mass (m) = 69 kg. Length of the rope (L) = 3.1 m (a) At the binging of the motion, the…

Q: A 1,769 kg automobile is moving at a maximum speed of 47 m/s on a level circular track of radius 275…

A: Given : mass of body, m = 1769 kg Speed of car, v = 47 m/s Radius of circular track, r = 275 m

Q: A roller-coaster car with mass 840 kg is launched from a huge spring with k = 31 kN/m into a…

A: Use conservation of energy to calculate the roller coasters velocity at the top of the loop.  spring…

Q: A motorcyclist in the Globe of Death, pictured here, rides in a 2.2-m-radius vertical loop. To keep…

A: Given, a motorcyclist in the Globe of Death, pictured here, rides in a r=2.2-m-radius vertical loop.…

Q: The driver of a speeding truck slams on the brakes and skids to a stop through a distance d. On…

A: To find the truck's skidding distance

Q: A body of mass m is attached to one end of a string of length R. The other end of the string is…

A:

Q: A point mass m slides without friction from O = (0,0) to P = (a, b) on a curve C under the action of…

A:

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.