3. The brakes exert a 640 N force on a car weighing 15,680 N and moving at 20 m/s. The car finally stops. What is the car's mass? (a) What is its initial momentum? (b) What is the change in the car's momentum? (c) How long does the braking force act on the car to bring it to a halt?
Q: 7. An object of mass m moves to the right with a speed v. It collides head-on with an object of four…
A:
Q: The figure below is for a 0.5 kg object p(kg m/s) 30.0 25.0 20.0 15.0 10.0 5.0 2.0 4.0 t(s) Find the…
A:
Q: A car (mass = 1160 kg) is traveling at 28.5 m/s when it collides head-on with a sport utility…
A: In head on collision law of conservation of momentum holds. Therefore Pi=Pf Pi=m1u1+m2u2…
Q: You and your friend are sitting on opposite ends of a canoe that is initially at rest with respect…
A: This problem is based on conservation of linear momentum. Initially system is at rest so the linear…
Q: 18. A slow-moving railroad speeder (m-1600 kg) used to quickly move cars into position without the…
A:
Q: From my window, I see a moving car with a large momentum. If the car moves at the same speed but…
A:
Q: A soccer ball slides across the surface of a frozen pond (it is smooth enough to neglect friction).…
A: Initial velocity is V1 Force applied 420N Time taken 0.013 sec. Final velocity is 11m/s
Q: 1.Two ice skaters stand at rest in the center of an ice rink. When they push off against one another…
A:
Q: 5. OMG! A Sumo wrestler is running towards you! The Sumo wrestler, running at 2 meters per second,…
A: Solution: Given Values, Mass of sumo wrestler m1=265 Kg Mass of youm2=68 Kg The velocity of a sumo…
Q: What is the frictional force exerted on the 2kg-block when it is sliding? (b) What is the speed of…
A:
Q: What is the speed of the garbage truck, in meters per second, just after it hits and adheres to a…
A: mass of truck m1 = 1.5 x 104 kg velocity of truck before collision u1 = 25 m/s mass of trash m2 =…
Q: 16) A 10 g bullet in motion, with 1000 m / s hits and passes through a 2.0 kg block initially at…
A:
Q: A 110-kg tackler moving at a speed of 3.1 m/s meets head-on (and holds on to) an 91-kg halfback…
A: Mass, m1 = 110-kgMass, m2 = 91-kgSpeed, v1 = -3.1 m/s ( negative sign represents the opposite…
Q: 12.) A boxcar traveling at 14 m/s approaches a string of 5 identical boxcars sitting stationary on…
A: Given data The mass of the boxcar is m = 18537 kg. The velocity of the boxcar is v = 14 m/s. The…
Q: 11. A 2-kilogram object traveling 10 meters per second north has a perfect elastic collision with a…
A: 11) Apply the momentum conservation equation and substitute the required values.
Q: 3. The graph below is for a 50 kg object. x(m) 60.0 50.0 40.0 30.0 20.0 10.0 -10.0 -20.0 2.0 4.0…
A:
Q: 3. Two skaters are facing each other with their hands touching. The two skaters are at rest. After…
A: The problem describes two skaters who are initially at rest and facing each other while touching…
Q: A 0.250 kg toy car moving with a speed of 0.820 m/s collides with a wall. The figure shows the force…
A:
Q: 14. A particle moves along the axis. Its momentum is graphed below as a function of time. Rank the…
A: Force is defined as Favg. = dp/dt = magnitude of slope of p-t curve Here, dp =change in momentum,…
Q: One object moves in the positive ? direction with speed ?. Another object moves in the opposite…
A: Given data : Speed of object 1 = V in positive direction Speed of object 2 = V In negative…
Q: You are sitting in a sled, at rest on a pond covered with nice, thick, frictionless ice. Your own…
A: mass of sled (M) = 10.1 kg Person's mass (m) = 3.3 kg Initial velocity of person and sled = 0…
Q: omentum of the system com external force on this system
A:
Q: The figure below is for a 50 kg object v(m/s) 100.0 80.0 60.0 40.0 20.0 2.0 4.0 t(s) Find the…
A: As per our guidelines we are supposed to answer only first three parts of question. Please post…
Q: A 0.250 kg toy car moving with a speed of 0.860 m/s collides with a wall. The figure shows the force…
A: given,mass = 0.250kgspeed u =0.860m/s
Q: 1. Two boxes of different mass are at rest. If both boxes are acted upon by equal force, which of…
A: Disclaimer: “Since you have asked multiple question, we will solve the first question for you. If…
Q: Imagine that a wood block is sliding along the surface of a desk. Can the frictional forces involved…
A: Therefore in the absence of any net external force, the linear momentum of the system will be…
Q: Your mass is 68.8 kg, and the sled s mass is 11.3 kg. You start at rest, and then you jump off the…
A: As per our guidelines, we are supposed to answer only first one question in case of multiple…
Q: Train cars are coupled together by being bumped into one another. Suppose two loaded train cars are…
A:
Q: "A 1-kg car travelling at 30 m/s decelerates coming to stop in 5 seconds, as a result of applying…
A: Given data The mass of the car is m = 1 kg. The initial velocity of the car is u = 30 m/s. The…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- 1. A hose sprays water into a train car. The hose is fixed in place and directed along the tracks, and the train car can move along the tracks without friction. The hose sprays water at a fixed rate a ([a] =MT-1) and speed v; the mass of the empty car is M. If the train car starts empty and at rest at t = 0, what is its speed at time t?3. Bob and Linda are sweethearts that enjoy skating arm in arm. Bob has a mass of 85 kg and Linda has a mass of 60 kg. Initially they are skating together with a speed of 3.0 m/s. Then Bob whispers a dirty joke into Linda's ear, causing her to push him in the oppposite direction of their motion. If Bob's final speed is 1.0 m/s, what is Linda's final speed? Before: Vi After: VBÍI. A lump of clay (m = 3.00 kg) is thrown towards a wall at speed v = 3.00 m/s. The lump sticks to the wall. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision. II. Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 3.00 m/s. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision. III. Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 2.00 m/s. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during…
- 3.) When two gliders collide on an air track, which statement will be true: A) The momentum of any single glider is conserved. 3) B) Friction does not exist. C) The sum of momentum (both gliders) BEFORE collision equals the sum of momentum AFTER. D) All the statements above are false. 4.) A skydiver is at a height of 35,000 ft and is falling at 80 miles per hour. The skydiver has: A) Only Potential energy B) Only Kinetic energy 4). C) Potential energy AND Kinetic energy D) Neither form of energyTwo cars have the same mass. Car 1 is travelling northward at a speed of 45 mi/hr. Car 2 is travelling southward at a speed of 45 mi/hr. The cars a) have the same momentum and kinetic energy. b) have the same momentum but different kinetic energies. c) have different momenta but the same kinetic energy. d) Have different momenta and kinetic energy.1. A lump of clay (m = 3.00 kg) is thrown towards a wall at speed v = 3.00 m/s. The lump sticks to the wall. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wallI. (c) Calculate percent of initial kinetic energy lost during this collision. II. Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 3.00 m/s. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost during this collision. III. Same lump is thrown towards the same wall, but this time it bounces off the wall at speed of 2.00 m/s. (a) What kind of collision is it? Is momentum conserved during this collision? Why or why not? (b) Calculate the impulse imparted on the lump by the wall. (c) Calculate percent of initial kinetic energy lost…