A more ordinary example of conservation of momentum than a rocket ship occurs in a kitchen dishwashing machine. In this device, water at high pressure is forced out of small holes on the spray arms. Use conservation of momentum to explain why the arms rotate, directing water to all the dishes. 8 (a) If two automobiles collide, they usually do not stick together. Does this mean the collision is elastic? (b) Explain why a head-on collision is likely to be more dangerous than other types of collisions.

Q: *12. CD A golf ball strikes a hard, smooth floor at an angle of 30.0° and, as the drawing shows,…

A:

Q: A bullet, having a mass of 0.0400kg moving with a velocity of 450 m/s penetrates a distance of…

A:

Q: If the pole-vaulter were to land on concrete rather than on a cushion, the impulse that stops the…

A: Given: The impulse of stopping the fall of the pole-vaulter in the concrete.

Q: A bullet, having a mass of 0.04 kg moving with a velocity of 450 m/s penetrates a distance of 0.08 m…

A: The expression for the acceleration of the bullet from the kinematic equation, v2=v02+2ada=v2-v022d…

Q: An 7.95 kg bowling ball rolling at 4.7 m/s bumps into a padded guardrail and stops.  What is the…

A: The momentum of an object has velocity is, p=mv It has velocity just before it makes a collision…

Q: A firework is shot up in the air and explodes. All the pieces equally fly upward, downward,…

A: Given:- A firework is shot up in the air and explodes. All the pieces equally fly upward,…

Q: A 85-kg swimmer dives horizontally off a 500-kg raft. The diver's speed immediately after leaving…

A:

Q: 1. A force of 5250 N is applied to a 300 kg box for 3.5 s. The box is initially at rest on a…

A: a) Impulse =Change in momentum =Force×Duration of the force   =5250×3.5 N.s=18375 N.s≈1.8×104 N.s

Q: A water pipe in a building delivers 1000 liters (with mass 1000 kg) of water per second. The water…

A: Given that,   Water delivery at 1000 kg/s moving at 1.4 m/s bend by 90o

Q: Pluto's diameter is approximately 2370 km, and the diameter of its satellite Charon is 1250 km.…

A:

Q: You’ve been given the challenge of balancing a uniform, rigid meter-stick with mass M = 110 g on a…

A: Given:Mass of a meter stick = 110 gmLength of meter stick = 1 m = 100 cmMass of one coin = 2.9…

Q: A water pipe in a building delivers 1000 liters (with mass 1000 kg) of water per second. The water…

A: Given the mass of water(m) = 1000 kg Initial speed(u) = 1.4 m/s  along the positive x-axis final…

Q: A 0.02 kg bullet is fired into a 1.5 kg block that is initially at rest on a flat frictionless…

A: Given: The mass of the bullet is m1=0.02 kg. The mass of the block is m2=1.5 kg. The block is…

Q: A 4.0-kg particle is moving horizontally with a speed of 5.0 m/s when it strikes a vertical wall.…

A: Impulse acting on a body can be said to be an immediate force which when applied to a body will…

Q: Water falls without splashing at a rate of 0.230 L/s from a height of 3.50 m into a 0.760-kg bucket…

A:

Q: A 85-kg swimmer dives horizontally off a 500-kg raft. The driver's speed immediately after leaving…

A:

Q: 20. Go mmh An astronaut in his space suit and with a propulsion unit (empty of its gas propellant)…

A:

Q: 0.2 m 0.2 m 3 kg 3 kg 2 kg Fig. 2: System of mass

A: solution is given as

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A: The answer is given below

Q: A small ball of mass m is aligned above a larger ball of mass M = 2.1 kg (with a slight separation,…

A:

Q: m, = zkg with Yelocity Mz = 1kg with elocity TWo toy robots , one of mass %3D V = Ims- and another…

A: (a)  The velocity of the center of mass of the system before the collision can be determined as,

Q: A 4.0-kg particle is moving horizontally with a speed of 5.0 m/s when it strikes a vertical wall.…

A: Given: The mass of the particle is 4.0 kg. The velocity of hit is 5.0 m/s. The velocity of rebound…

Q: Nate would often don a protective suit of Bounce-Tex, which he invented, and after working up a high…

A:

Q: A 140 g baseball is moving horizontally to the right at 40 m/s when it is hit by the bat. The ball…

A: Given,

Q: A 2x10^3g metal sphere makes an elastic collision with another metal sphere at rest and continues to…

A:

Q: A 0.57 kg ball is moving horizontally with a speed of 7.2 m/s when it strikes a vertical wall. The…

A: Write the expression for momentum.

Q: Look up what a gravitational slingshot is. If a 2000 kg object approaches earth head on at 3000 MPH,…

A:

Q: Water falls without splashing at a rate of 0.220 L/s from a height of 3.40 m into a 0.590-kg bucket…

A: The total weight that the scale will measure will be equal to the sum of the weight of the bucket,…

Q: Select the correct answer. When a ball hits a vertical wall, what happens to the components of…

A: Here the linear momentum of the ball in the x direction will remain conserved and change in the y…

Q: A small ball of mass m is aligned above a larger ball of mass M = 0.75 kg (with a slight separation,…

A: Mass of larger ball, M = 0.75 kg mass of smaller ball , m  Height , h = 2 m To find = a) Mass of…

Q: You are holding a shopping basket at the grocery store with two 0.58 kg cartons of cereal at one end…

A: M = 1.8 kg, m = 0.58 kg, L = 0.8 m

Q: A 0.58 kg ball is moving horizontally with a speed of 3.8 m/s when it strikes a vertical wall. The…

A: Given, a mass m = 0.58 kg ball is moving horizontally with a speed of vi = 3.8 m/s when it strikes a…

Q: A 7.00 g bullet is fired horizontally into a 1.20 kg wooden block resting on a horizontal surface.…

A: Using law of conservation of momentum, msys*v'=mbullet*v Where, msys= mbullet+mwooden block = 5+1200…

Q: A bullet of mass 100 g is fired horizontally into a block of wood of mass 2 kg and suspended like a…

A: Given data Mass of bullet is m=100 g=0.10 kg Mass of block of wood is M=2 kg Acceleration due to…

Q: You are holding a shopping basket at the grocery store with two 0.58 kg cartons of cereal at one end…

A: M  = 1.8 kg, m = 0.58 kg  L =  0.8 m

Q: A soccer ball with a mass of 0.41 kg has a velocity of 3.3 m/s to the east. It experiences a sudden…

A: Required : Direction of the impulse.

Q: A 0.455-kg hockey puck, moving east with a speed of 5.05 m/s, has a head-on collision with a…

A: Given Data: The mass of the hockey puck is m= 0.455 kg Velocity of the hockey puck is v1=5.05 m/s.…

Q: A professional boxer hits his opponent with a 1075 N horizontal blow that lasts 0.190 s. The…

A: F = 1075 N t = 0.19 sec m = 105 kg a)impulse = F * t = 1075*0.19 = 204.25 kgm/s

Q: You’ve been given the challenge of balancing a uniform, rigid meter-stick with mass M = 110 g on a…

A: Taking moment about the pivot,

Q: The linear impulse delivered by the hit of a boxer is 95.4 N · s during the 0.122 s of contact. What…

A: The linear impulse delivered by the boxer, J=95.4 N.s   The time duration, t=0.122 s

Q: A 140 g baseball is moving horizontally to the right at 35 m/s when it is hit by the bat. The ball…

A: mass, m = 140 g  initial velocity, u = 35 m/s  final velocity, v = - 55 m/s at 25 degree above…

Q: A 10 g bullet is fired into a 2.985 kg block of wood which is the bob of a ballistic pendulum if the…

A:

Q: 13. A çar travelling 100 km/h comes to a stop in 100 m when the brakes are applied. An identical car…

A:

Q: A 2.8 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed…

A: Given   ms of wooden block = 2.8 kg mass of bullet = 3.0 g speed of bullet before collision = 510…

Q: A 3.3 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed…

A:

Q: percentage of the gas propellant was ejected from the completely filled propulsion unit

A: The astronaut begins the space walk from rest. Apply principle of conservation of momentum…