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: Many roller coasters have loops where carts rollon a track that curves sharply up into the air.At…

A:

Q: a.) What is the horizontal and vertical components of the initial velocity of the cannonball? b.)…

A: The distance of the wall from the initial point is 195 m. The height of the wall is 135 m. The time…

Q: A rock is thrown horizontally at a speed of 10.00 m/s from the top of a 50.0 m-high vertical cliff…

A: Given data: Horizontal speed u=10 m/s. Height of the cliff h=50 m. Range R=40 m. The horizontal…

Q: All angles are measured as anti-clockwise rotations from the +x-axis. An object has an initial…

A:

Q: Launch a tennis ball at 20.0 m/sec at 60 degrees above horizontal from the top of a building that is…

A:

Q: A stuntman tries to jump from a ledge over an 8 m gap onto a mattress that is 3 m below the current…

A:

Q: A particle is launched from the origin on the ground with an initial velocity v = (2.40 m/s) x +…

A: For a freely falling projectile particle launched at an angle θ from the ground with an initial…

Q: Imagine that you are in a car that is traveling up a bridge that is inclined at an angle of 15.5…

A:

Q: 3. A man is wearing 100 foot stilts with a bow and arrow. He proceeds to shoot the arrow straight…

A: Given Data: The initial vertical velocity of the bow is, u0=49 m/s The height of the stilts is h=100…

Q: A roofer tosses a small tool to the ground. What minimum magnitude vo of horizontal velocity is…

A: For the tool to just miss the point B, total vertical distance travelled will be 1.2m+0.7m= 1.9m…

Q: A brick is thrown upward from the top of a building at an angle of 20° to the horizontal and with an…

A:

Q: Santa loses his footing and slides down a frictionless, snowy roof that is tilted at an angle of…

A: Given,

Q: A chimpanzee is swinging through the jungle on a l = 24.2 m-long vine, as shown. If the chimpanzee…

A: h1= 11.8m  h2= 22.8 m

Q: Determine an initial velocity which could launch a water balloon 25 m downrange and have it land in…

A: Given height is H =3m and range is 50m Then R/2 =50/2 =25m To fine any solution, we required any…

Q: the centripetal acceleration of an object is zero, what can you conclude about the motio O The…

A: The acceleration acting on body moving in uniform circular motion as taking a sharp turn in a…

Q: physics book slides off a horizontal table top with a speed of 1.90 m/s. It strikes the floor after…

A: Initial velocity "u" = 1.90m/s  Time taken to land on floor  "t"= 0.460 sec .

Q: A physics student stands on a cliff overlooking a lake and decides to throw a softball to her frie…

A:

Q: It will take her seconds to reach the ground.

A:

Q: a guy is throwing pumpkins off a five story (15 meters high) building and wants the messiest result…

A: According to the given data h=15m v=15m/s we need to find Impact velocity st the ground when (a)…

Q: You built a pinball machine that has a banked circular track with radius O.34 m. The ball shooter…

A:

Q: An airplane releases a ball as it flies parallel to the ground at a height of ℎ=245 m as shown in…

A: height (h) = 245 m g = 9.81 ms2Initial horizontal speed = v horizontal distance (dx) = h dx = 245 m

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.