you were told that the girl's mass was three-fourths that of the boy's mass. The boy has a velocity of v = 0.77 m/s to the left. What would be the girl's velocity in this case? (Consider the ice to be frictionless. Enter the magnitude only.)

Q: A rock of mass m = 1.9 kg is released from a height of h = 3.2 m into a basin of water. At a time of…

A:

Q: A 25 kg crate is released at the top of a ramp tilted at 40 degrees above the horizontal if the…

A: Given : mass of crate, m = 25 kg Coefficient of kinetic friction, μk = 0.3 Angle of inclination =…

Q: A bullet of mass m1 = 10.00 g that has a velocity of v1 in the horizontal direction hits and gets…

A: The total momentum of the system must be conserved. The initial momentum of the system is equal to…

Q: when running on level ground, the angle at which my center of mass is projected into the air is 45…

A:

Q: In Figure, block 1 of mass m1=1.5kg slides from rest along a frictionless ramp from height h =2.50 m…

A:

Q: motorcar of mass 1200 kg is moving along a straight line with a uniform velocity of 90 km/h. Its…

A: Mass of the motor car, m = 1200 kgInitial velocity of the motor car, u = 90 km/h = 25 m/sFinal…

Q: What exhaust speed is required to accelerate a rocket in deep space from 800 m/s to 1000 m/s in 5.0…

A:

Q: Which of the following is NOT a characteristic of an isolated system? a. Systems where linear…

A: We'll analyse all the given statements and draw conclusions.  Please read it carefully as question…

Q: Object A has a mass of D kg travelling from North going South with a speed of M m/s. Object B has a…

A: (a)The speed of object A. (b) The direction of object A relative to negative y-axis. (c)the…

Q: A ball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. If the ball…

A:

Q: A cube of M 3.00 kg slides down a frictionless incline, and elastically strikes another cube m =1.30…

A: Speed of mass M at the bottom of the incline Kf+Uf=Ki+Ui12mu12+0=0+mghu1=2gh=29.8 m/s235.0 cm10-2 m1…

Q: An arrow with a mass of 250 g has a speed of 27 m/s before it passes through a 1.5 cm piece of…

A: MA = Mass = 250 g = 0.250 Kg , Vi = Velocity = 27 m/s T = d = thickness = 1.5 cm = 0.015 m Vf =…

Q: A stone of mass m = 1.55 kg is dropped from a height of h = 3.9 m into a pool of water. At a time of…

A: Mass of stone (m) = 1.55 kg Initial height (h) = 3.9 m t = 1.9 s

Q: Nicholas, with a mass 89.0 kg, jumps vertically upward to a maximum height of 40.0 cm. With what…

A:

Q: A baseball (m = 152 g) approaches a bat horizontally at a speed of 43.6 m/s (97.6 mi/h) and is hit…

A:

Q: A tall man walking at 1.10 m/s accidentally bumps his head of mass 3.07 kg on a steel doorjamb. His…

A: Initial speed (u) = 1.1 m /s mass of steel doorjamb = 3.07 kg t = 0.019sec Final velocity (V) = 0…

Q: A ball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. If the ball…

A: Given:-  The mass of the ball is m = 275 g  and the ball drop from the rest  The velocity of the…

Q: A girl of mass 55 kg throws a ball of mass 0.80 kg against a wall. The ball strikes the wall…

A:

Q: A ball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. If the ball…

A: Given: Mass of the ball=275 g  before the bounce, the ball is moving downwards, so let's say its…

Q: An open train car, with a mass of 2190 kg, coasts along a horizontal track at the speed 2.17 m/s.…

A: Let us calculate the car speed v, as shown below:

Q: An open train car, with a mass of 2130 kg, coasts along a horizontal track at the speed 2.99 m/s.…

A:

Q: A 2000-kg railway freight car coasts at 4.4 m/s underneath a grain terminal, which dumps grain…

A: Given: A 2000-kg railway freight car coasts at 4.4 m/s underneath a grain terminal, which dumps…

Q: A 65.0 kg  diver, dives horizontally off a 375 kg raft initially at rest. If the diver's speed…

A:

Q: A 480-kg car moving at 14.4 m/s hits from behind a 570-kg car moving at 13.3 m/s in the same…

A:

Q: Two blocks of mass 3kg and 2kg are moving toward each other along a horizontal frictionless surface…

A:

Q: A ball with a mass of 275 g is dropped from rest, hits the floor and rebounds upward. If the ball…

A: Given : m = 275 g = 0.275 kg vi = -2.70 m/s (negative because ball is thrown downward) vf = 1.70 m/s…

Q: A bullet of mass m initially traveling at speed v imbeds itself in a wooden block and travelsΔx…

A:

Q: Two blocks of mass 3kg and 2kg are moving toward eachother along a horizontal frictionless surface…

A:

Q: A particle with mass mA = 3.00 kg is located at  rA = (2.50 i + 3.50 j) m, and a second particle of…

A: Given that:- Mass of A=3 kg  Mass of B=5kg

Q: A rubber bullet of mass m = 0.025 kg traveling at velocity vo an iron block of mass M = 15 kg…

A: Mass of bullet ( m ) = 0.025 kg Velocity of bullet ( v0 ) = 50 m/s  Mass of iron block ( M )= 15 kg…

Q: A 0.24 kg blob of clay is thrown at a wall with an initial velocity of 23 m/s.  If the comes to a…

A: Acceleration is the change in velocity over time.

Q: One block of mass m_1=2.0 kg is sliding down along a frictionless ramp from a height of h=2.5 m. It…

A:

Q: A 0.065-kg tennis ball moving to the right with a speed of 15 m/s is struck by a tennis racket,…

A: Given:Mass of tennis ball, m=0.065 kgspeed, v=15 m/s

Q: What is the acceleration of a 5000 kg rocket taking off from the Moon, where the acceleration  due…

A: Given data:  Mass of rocket (m) = 5000 kg Acceleration due to gravity (g) = 1.6 m/s2 Mass flow rate…

Q: A girl launches a toy rocket from the ground. The engine experiences an average thrust of 5.26 N.…

A: Given: F=5.26 Nme+mf=25.4 g=0.0254 kgmf=13.2 g=0.0132 kgt=1.90s

Q: A 0.53 kg billiard ball initially at rest is given a speed of 14 m/s during a time interval of 5.0…

A: Average force is,

Q: During an automobile crash test, a 1000 kg car is sent towards a cement wall at a speed of 14 m/sec…

A:

Q: "A railroad car, of mass 200 kg, rolls with negligible friction on a horizontal track with a speed…

A:

Q: A 75 - kg fisherman in a 125 - kg boat throws a package of mass m =15 kg horizontally toward the…

A: Let vi be the velocity with which package leaves the boat, and vf be the velocity with which boat…

Q: A minicab, of mass 3,000 kg collides with a 4,000 kg car at rest. The two vehicles coupled together…

A:

Q: . The fisherman's mass is 79 kg, and the boat's is 126 kg. The fisherman and boat are initially at…

A: According to conservation of momentum,Initial momentum = final momentum

Q: related

A: The following data is given: m=0.275 kgInitial velocity(u)=-3.5 m/s......(As instructed in part a)…

Q: A 0.19kg baseball is pitched at 42m/s is struck by the bat with an average force of 700 N, which…

A: Consider a ball of mass m is moving toward the left side with the speed v1 is struck by the bat with…

Q: A car with mass mc = 1074 kg is traveling west through an intersection at a magnitude of velocity of…

A:

Q: If a 1305 kg train car on a one dimensional track, moving at 4 m/s north, hits and bounces off a…

A: Given that,               Mass of 1st train car (m1) = 1305 kg               Velocity of 1st train…

Q: One block of mass m_1=2.0 kg is sliding down along a frictionless ramp from a height of h=2.5 m. It…

A: m1 = 2 kg m2 = 1 kg h = 2.5 m μk= 0.50distance moved = d

Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”