An animal with a mass of 25 kg starts to slide while standing on the top of a 10 m high pole as shown in the figure, and its speed becomes 4 m / s when it reaches the bottom of the pole. What is the friction force applied by the pole affecting the animal? (g = 10 m / s ^ 2)

Q: A 0.250 kg ball swings in a vertical circle on the end of a string that is 1.20 m long. The tension…

A:

Q: A person on a sled coasts down a hill and then goes over a slight rise with speed 2.4 m/s. The top…

A:

Q: A car traveling at a rate of 19.8 m/s skids to a stop in 2.89 seconds. Determine the skidding…

A:

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: A string under a tension of 49.0N is used to whirl a rock in a horizontal circle of radius 2.75 m at…

A:

Q: A jet airplane is in level flight. The mass of the airplane is ?=8990 kg.m=8990 kg. The airplane…

A: The vertical component of the force balances the weight of the plane. It is given as,

Q: A father places his 20 kg child on a 5.0 kg cart, to which a 2.0 m rope is attached. He then holds…

A:

Q: please answer with steps

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

Q: A mother pushes her child on a swing so that his speed is 9.1 m/s at the lowest point of his path.…

A:

Q: A mountain goat ties a pineapple to a rope and swings it around in a circle. The rope can take…

A:

Q: An adventurous archeologist (m = 84.5 kg) tries to cross a river by swinging from a vine. The vine…

A: Given data: Mass (m) = 84.5 kgThe length of the Vine (L)= 10 mThe speed at the bottom swing (V) =…

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

A:

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

A: Given data: Speed of the train, v=10.7 m/s Height above the ground, h=37.5 m Acceleration at the top…

Q: A "swing" ride at a carnival consists of chairs that are swung in a circle by 18.7 m cables attached…

A: Given: Length of cable = 18.7 m Mass of chair +occupant M =294 kg

Q: A "swing" ride at a carnival consists of chairs that are swung in a circle by 16.9 m cables attached…

A:

Q: It is well known that runners run more slowly around a curved track than a straight one. One…

A:

Q: To get a toolbox up an inclined slope, a student installs a pulley system as in the picture shown.…

A:

Q: A pickup truck has a box sitting loose in its bed. The box has a mass of 2.5 kg and the coefficient…

A: Given that: m=2.5 kgM=3150 kgμ1=0.8μ2=0.9r=30mAssume that the road is unbanked.

Q: A track is built so that going around a curve (R = 65.0 m), the banking of the track will allow the…

A:

Q: The cable lifting an elevator is wrapped around a 1.1-m-diameter cylinder that is turned by the…

A:

Q: adventurous archeologist (m = 85.0 kg) tries to cross a river by swinging from a vine. The vine is…

A: Given,  Mass , m = 85.0 kg Length of vine, L = 10.0 m  Speed , V = 8.0 m/s  Breaking strength, f =…

Q: A baseball of mass m = 0.46 kg is spun vertically on a massless string of length L = 0.96 m. The…

A: Given:            m= 0.46 kg   Max  Tension= 11.8N              L= 0.96 m

Q: What is the maximum speed (in m/s) that a car with a mass of 450 kg can have at point B in order for…

A: Here, the weight of the car provides the centripetal force.

Q: A car travels around a circle with a diameter of 500 m at a constant speed of 25 m/s. The static…

A:

Q: A mechanic is dragging an 18-kg tire across the floor at a constant velocity, while pulling with a…

A: The free-body diagram of the object is shown below. Here, m is the mass, F is the applied force,…

Q: A desperate hiker has to think fast to help his friend who has fallen below him. Quickly, he ties a…

A:

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

A: Given: The speed of train (v) = 10.7 m/s. Initial height of train (h) = 36.7 m.

Q: A ski lift is pulling a skier up a hill. The coefficient of friction is 0.4. The operators want the…

A:

Q: You tie one end of 0.3-m-long spring to a 0.5 kg mass. Holding the other end of the spring in your…

A:

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

A:

Q: A student of mass M = 98 kg takes a ride in a frictionless loop-the-loop at an amusement park. The…

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.