A 0.087 kg arrow is fired horizontally. The bowstring exerts an average force of 80 N on the arrow over a distance of 0.90 m. With what speed does the arrow leave the bow?  m/s

Q: A 0.075 kg arrow is fired horizontally. The bowstring exerts an average force of 64.3 N on the arrow…

A: Let F denotes the average force, d denotes the distance over the force is applied, and W denotes the…

Q: A5 kg object under the influence of a varying force F as shown in figure. If the object start from…

A: From the graph, we first need to find the work done on the 5 kg object The area under the force vs…

Q: A 10 kg object is released at the top of a building 100 m high. If the force of air resistance is on…

A: Given: The mass (m) of the object is 10 Kg. The height (h) of the building is 100 m. The force of…

Q: A 43.0-kg child swings in a swing supported by two chains, each 2.96 m long. The tension in each…

A: a) The radial force Fc is, Fc=mv2r The tension in the chain is T is,…

Q: A hockey puck with mass 0.162 kg is pushed across the ice with a constant force of 0.90 N. The…

A: Free body diagram of puck is as follows:

Q: In a slap shot in hockey, the stick and puck are only in contact for 0.030 s. During this time, the…

A:

Q: Under the influence of its drive force, a snowmobile is moving at a constant velocity along a…

A: According to Newton's second law -  F=ma Therefore,  a=Fm Given values,  m = 125 kg  F = 190 N a=190…

Q: Two carts, labeled 1 and 2, are headed toward each other along a level track. Both carts roll…

A: Given: m1 = 21.3 kgm2=3.11kgv1i=u1 = 1.9 m/sv2i=u2=-1.8 m/slet final speed are v1 and v2

Q: A 78 kg bungee jumper is initially standing at rest on a bridge. After falling a distance 15 m, then…

A: Given: mass of bungee jumper, m = 78 kg  distance fallen, S = 15 m

Q: During a downhill skiing start, a 65 kg skier generates the following forces while beginning their…

A:

Q: 1,200 kg car traveling at a speed of 43 m/s skids to a halt on wet concrete where µk = 0.60. How…

A:

Q: A child shoves a 4.6 kg block so that it starts traveling across a level floor with an initial…

A:

Q: A hockey puck slides with constant velocity, from point “a” to point “b” along a frictionless…

A:

Q: m, and m2 are connected to each other. As the system travels with 10 m/s velocity, force F begins to…

A: First find out the acceleration

Q: By what angle does the stick deviate from the vertical axis?

A:

Q: A 35.0-kg child swings in a swing supported by two chains, each 3.02 m long. The tension in each…

A:

Q: = 75 N for a distance Ax = 2 m along a (mostly) A hand pushes block A (ma =3 kg) with a constant…

A:

Q: A hockey puck with a mass of 0.2 kg is sliding along ice that can be considered frictionless with a…

A:

Q: m, and m2 are connected to each other. As the system travels with 10 m/s velocity, force F begins to…

A:

Q: 10 kg A 30° A block of mass 10.0 kg sits on a 30° incline, with a rope attached as shown. The rope…

A:

Q: Chapter 04, Problem 006 Scientists are experimenting with a kind of gun that may eventually be used…

A: a=Fm=3.7×105 N2.8 kg=1.32×105 m/s2

Q: A 10 kg object starts from rest and achieves a speed of 20 m/s in 10 s. How much force (in N) acted…

A: Mass of the object m=10 kg The initial speed of the object u =0 m/s The final speed of the object v=…

Q: A box of mass 4.0 kg hangs by a cable from the ceiling of an elevator. The elevator is moving up at…

A: Given(s): Mass of the box, m=4.0 kg Height raised, h=4 m Moving at a constant speed of 5.0 m/s.…

Q: Two blocks are connected by a string as in the figure and the system is released from rest. The…

A:

Q: A 40.0-kg child swings in a swung supported by two chains, each 3.00 m long. The tension in each…

A: The net force towards the Centre is Fc=mv2l M is the mass of the child, v is the speed of the child,…

Q: Mr. M is riding on his bike while pulling his daughter in a trailer behind him. Their combined mass…

A: Given: Combined mass , M = 125 kg Velocity, v = 44 km/h = 12.222 m/s

Q: Curling is a sport played with 20 kg stones that slide across an ice surface. Suppose a curling…

A: Impulse  is the integral of a force, F, over the time interval,  Impulse applied to an object…

Q: A 10 N of force is applied to a toy car and toy car accelerates to 2m/s^2. If 20 N of the force is…

A:

Q: 8.14: A 2-kg particle moving horizontally with a speed of 5 m/s strikes (2) a vertical wall for 2…

A: given - mass of particle = 2kg  initial speed V1 = 5 m/s  speed after rebound V2 = 5m/s  t, time of…

Q: Figure shows a system consisting of two blocks A and B connected by an inextensible cable that runs…

A:

Q: A block is given an initial velocity of 6.0 m/s up a frictionless incline of angle 8=37.0° as shown…

A: Given: The initial velocity is u=6 m/s. The angle is θ=37⁰. The expression for Newton’s law of…

Q: A 5-cm-diameter horizontal jet of water with a velocity of 40 m/s relative to the ground strikes a…

A:

Q: A child riding a bicycle has a total mass of 30.6 kg. The child approaches the top of a hill that is…

A:

Q: A 3 kg particle starts from rest and moves a distance of 4 m in 2 sec under the action of a single…

A: If a mass ‘m’ has acceleration ‘a’ then from Newton's 2nd law of motion, the force on the body is…

Q: The figure below shows two boxes connected to each other by a light cord that passes over a pulley…

A:

Q: Two horses are used to pull a canal boat as shown in the figure. Each horse produces exactly 1 hp…

A: Power is defined as the rate at which work is done or the conversion of the energy from one form to…

Q: In a slap shot in hockey, the stick and puck are only in contact for 0.030s. During this time, the…

A:

Q: Two students are watching an action film in which a car drives down a ramp onto the back of a moving…

A:

Q: David throws a 50 kg cart down a ramp with an initial speed of vi = 6 m/s. The ramp is at an angle…

A:

Q: A 19.8-kg box is moving due east at a constant velocity of 15.5 m/s. Compute the normal force…

A: Please note : As per answering guidelines I can answer the first question only. Since , this is not…

Q: A box of unknown mass is sliding with an initial speed vi = 4.90 m/s across a horizontal…

A:

Q: A 35.0-kg child swings in a swing supported by two chains, each 2.96 m long. The tension in each…

A: The lowest point of the swing is the equilibrium point, so the condition for equilibrium of the…

Q: A lump of clay of mass 0.28 kg is dropped from a height of 10.8 m. The clay comes to a full stop…

A: mass of lump of clay (m) = 0.28 kg initial height (h) = 10.8 mInitial velocity (u) = 0 ms

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.