38. A 520-N skateboarder runs east with a speed of 4.5 m/s toward her 3.0-kg skateboard that is moving 6.0 m/s west, and jumps on. What is the final speed and direction of the skateboarder on the board? A. 3.94 m/s, east B. 3.94 m/s, west C. 4.58 m/s, east D. 4.58 m/s, west

Q: on an unknown planet, a 145 g baseball is hit so that it travels straight upward to reach a maximum…

A:

Q: B a 0.7 bl.s F1 135 C bl-5 405 F2 D M242.

A: Given data,

Q: Two iceskaters suddenly push off against one another starting from a stationary position. The 45-kg…

A: Given:           mass m1 = 45kg           mass m2 = 60kg              v1         = 0.375m/s…

Q: 4. Batman with mass 90 kg jumps straight down from a building to a moving car to chase The Joker.…

A: Given : m1 = 90 kg v1i = 0 (because initially Batman hits the car) m2 = 500 kg v2i = 15 m/s

Q: A 1,000-kg car is initially traveling due east at 26 m/s when it collides with a 2,000-kg truck that…

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Q: During a collision with a wall, the velocity of a 0.200-kg ball changes from 20.0 m/s toward the…

A:

Q: Edelgard has a mass of 55 kg. She is riding her skateboard east at 5 m/s. She collides with Dimitri,…

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Q: 2 500 kg truck moving at 10.00 m/s strikes a car waiting at a traffic light, hooking bumpers. The…

A:

Q: 357 kg car is moving at 35–. The driver then accelerates at 3.5 for 18.3s s2 a. How fast is the car…

A: given   m=1857 kg      initial velocity u=35 m/s      acceleration a= 3.5 m/s2     t=18.3 s v = u…

Q: A 0.5 kg soccer ball going 30 m/s is headed in the opposite direction 20 m/s. The interaction…

A: It is given that

Q: A 300 g bird flying along at 6.00 m/s sees a 0.01 kg insect heading straight toward the bird with a…

A: Given, mass of bird=0.3 Kg speed of bird=6m/s mass of insect=0.01 kg speed of insect=30 m/s

Q: 4 Which boy has the most momentum? A. 50 kg boy running 2.00 m/s. B. 60 kg boy running 1.80 m/s. C.…

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

Q: car moving at 9.5 m/s crashes into a tree and stops in 0.28 s. a. Calculate the magnitude of the…

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Q: A canoe is designed to have very little drag when it moves along its length. Riley, mass 52 kg, sits…

A: Given data: The mass is: m2 = 52 kg The mass of the canoe is: m1 = 21 kg The velocity of canoe…

Q: a 3000 kg truck is driving at 20 m/s north. it collides head-in with a 1200 kg car travelling south…

A:

Q: If a cannonball with a mass of 5 kg is fired at a velocity of 125 m/s from a cannon with a mass of…

A: Recoil is based on conservation of momentum,     i.e.          m1v1 = m2v2   Given to us,…

Q: art with a mass of 50 g is thrown at 15 m/s and sticks into a 100-g apple hanging on a string. What…

A:

Q: A 3-g bullet is fired horizontally into a 7-kg block of wood suspended by a rope from the ceiling.…

A:

Q: You demonstrate hitting a board in a karate class. The speed of your hand as it hits the thick board…

A: Given: initial velocity, u = 14 m/s   mass, m = 0.7 kg  time, t = 0.002 s  final velocity, v = 0

Q: You catch a ball within 1 millisecond from when the ball touches your hand. If the ball undergoes a…

A:

Q: A 8000-N car is traveling at 80 km/h. It strikes a 12000-N car, which is stationary. The two cars…

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Q: A 1000 kg car travelling at 30m/s collided head-on with a 2000 kg van travelling at 20 m/s. After…

A:

Q: 7. A 100 kg cannon, at rest, contains a 10 kg cannon ball. When fired, the cannonball leaves the…

A:

Q: . Consider a large fish, 10.0 Kg, swims 2.00 m/s toward and swallows a small fish, 3.00 Kg, at rest.…

A: Given  Mass of big fish  M = 10.0 kg  Mass of small fish  m = 3.00 kg Initial velocity of larger…

Q: 7. Which object has more momentum? a. One with big mass b. One with high velocity One with big mass…

A: The expression for the momentum of any object is given as, P=mv Here, m is the mass of the object…

Q: 4. A 5.0 kg mass moving with a velocity of 8.0 m/s East has an impulse applied to it which causes…

A: Given: Mass, m=5 kg Initial velocity, u=8 m/s East Final velocity, v= 20 m/s a. Impulse: J=∆p=m∆v…

Q: A 120 g grapefruit is dropped from a tall building. What is the magnitude of its momentum after 2.00…

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Q: A block of wood of mass 0.95 kg is initially at rest. A bullet of mass 0.050 kg traveling at 100.00…

A:

Q: 11.A 1300 kg car runs into the rear of a 1900 kg van that was travelling at 8 m/s. After collision,…

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Q: A stationary soccer ball of mass m = 0.52 kg is booted with a constant force of F = 22 N. The man's…

A: The objective of the question is to find the speed and height of a soccer ball after it is kicked by…

Q: A 100 kg go-kart travels at a velocity 2 m/s and then quickly stops in 8 seconds to avoid an…

A: Here, a=∆v∆t=0m/s-2m/s8s=-0.25m/s2

Q: A bicycle has a momentumn of 25 kgm/s. What momentum would the bicycle have if it had twice the mass…

A:

Q: 8. In a police ballistics test, a O.0100-kg bullet moving at 200 m/s is fired into a 1.00-kg block…

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Q: a.Assuming that block one stops after it collides with block two, what is block two's velocity after…

A: This problem is an application of the conservation of linear momentum. We will consider that the…

Q: A stream (J) of bullets of mass 21 g each has a speed of 501 m/s. They hit and come to rest (,)…

A: Given: Mass of bullets are 21 g Speed is 501 m/s Hitting bullets number are 10 / sec

Q: A 5.0-kg ball is at rest when it is struck head-on by a 2.0-kg ball moving along a track at 10.0…

A: Given data:  m1 = 5.0 kg and m2 = 2.0 kg u1 = 0 m/s, u2 = 10.0 m/s V2 = 0 m/s Required: The speed of…

Q: An empty 15000-kg garbage truck is coasting on a level road at 5.00 m/s. Suddenly, a 5000-kg of…

A:

Q: A 3350 kg cannon is mounted so that it can recoil only in the horizontal direction.   a. Calculate…

A: Given:  Mass of canon, mc= 3350kg Mass of shell, ms= 14.0kg Velocity of shell, vs= 480m/s Angle=…

Q: A .5 kg object fell straight down to hit a platform. Right before the collision and is traveling at…

A: Maas of object m=0.5 kg and velocity before collision u=6.2 m/s. Force exerted by platform on the…

Q: 26. You head to Lake Charles for a spring break and win big at roulette. You decide to spend your…

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Q: a. 15. Cart A (mA = 850 g) has a velocity of 4 m/s [right] and is moving along a frictionless…

A: