A knife is dropped from the top of a 16.0 m high mast on a ship moving at 1.74 m/s due south. (a) Calculate the velocity of the knife relative to the ship when it hits the deck of the ship.  m/s (down) (b) Calculate the velocity of the knife relative to a stationary observer on shore.  m/s  Â° (below the horizontal to the south) (c) Discuss how the answers give a consistent result for the position at which the knife hits the deck

Q: A train moves in the x direction at 10 m/s A person facing opposite the direction that the train is…

A:

Q: To decide who pays for lunch, a passengeron a moving train tosses a coin straight upward with an…

A: (a) Relative to the ground, the coin has both vertical horizontal components of velocity. However,…

Q: A rifle that shoots bullets at 460 m/s is to be aimed at a target 45.7 m away. If the center of the…

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A:

Q: Why does vertically falling rain make slanted streaks on the side windows of a moving automobile? If…

A:

Q: ly upward with a speed of 12.0 m/s inside a bus moving at 9.0m/s. what is the velocity of a ball as…

A: Given:-  The velocity of the bus is  u = 9 m/s  The velocity of the ball's vertical upward direction…

Q: A toy rocket is launched the instant of engine bur height, and falls back to O 209 m O 244 m O233 m…

A: Given Engine burnout At a height = 49 m Velocity at 49 m = 60 m/s We have to calculate the maximum…

Q: A red train traveling at 72 miles/hour (mph) and a green train traveling at 100 mph are headed…

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Q: Verify that the coin dropped by the airline passengertravels 144 m horizontally while falling 1.50m…

A: It is given that,

Q: ne object is fired at an angle of ten degrees above the horizontal. A second object is fired at an…

A: Let all the objects thrown with the same magnitude of velocity = u First object is fired at an angle…

Q: A projectile is launched vertically upward from the ground at th A second projectile located a…

A: Given;- The first projectile vertical velocity v1 = v0 in an upward direction  The second projectile…

Q: two identical box moves with the same speed along perpendicular trajectories, one along horizontal…

A: During collision ,no external force acts on the system ,so total linear momentum of system remains…

Q: An ice hockey player is moving at 8.00 m/s when he hitsthe puck toward the goal. The speed of the…

A: Given,

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A: Given: A boat is traveling upstream in the positive direction of the x axis at 15 km/h with respect…

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A:

Q: An athlete crosses a 25-m-wide river by swimmingperpendicular to the water current at a speed of 0.5…

A:

Q: A rifle that shoots bullets at 456 m/s is to be aimed at a target 42.7 m away. If the center of the…

A:

Q: a fish swimming in a horizantal plane has velocity vi=(4.00i+1.00j) m/s at the point in the ocean…

A: Let vi and vf be the initial and final velocity vector of the fish.

Q: A boat is heading due east at speed v when passengers onboardspot a dolphin swimming due north away…

A: The velocity of the boat relative to observer,

Q: d the velocity of the bird relative to earth  b) Find the t

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Q: In the What If? section of Example 4.5, it was claimed that the maximum range of a ski jumper occurs…

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Q: A highjacker inside a plane flying at 400km/h [w] fires a gun eastward. The muzzle velocity of the…

A:

Q: A boat crosses a river of width 225 m in which the current has a uniform speed of 1.35 m/s. The…

A:

Q: A motorboat is crossing a river that flows eastward at a speed of 5 km/h. If the boat needs to…

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Q: A person standing on a bridge overlooking a highway, thinking of Isaac Newton, unintentionally drops…

A:

Q: The speed of a projectile when it reaches its maximum height is one-half its speed when it is at…

A: let the initial velocity = u Let the launch angle = θ

Q: You want to swim straight across a river that is 76m wide. You find that you can do this if you swim…

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A:

Q: Two photogates are necessary in the Projectile Motion experiment so that the measurement is more…

A: we have need information in projectile motion of range and time of flight. to know these quantities…

Q: Can the displacement vector for a particle moving in twodimensions be longer than the length of path…

A: Displacement vector is the straight line distance between the starting point and ending point of the…

Q: A particle is launched, from O(0,0) at a speed of 30m/s at an angle of 30°. The time taken by the…

A: if the particle is launched at the speed of 30 m/s at an angle of 30owith the horizontal, then,…

Q: A rifle that shoots bullets at 451 m/s is to be aimed at a target 43.6 m away. If the center of the…

A: The given question can be represented in a figure as follows: (since the path of the bullet will be…

Q: A projectile with a muzzle velocity of 550 mps is fired from a gun at a top of a cliff 460 m  above…

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A: Height, length, wide 80cm, 120cm, 50cm  Acceleration is 3m/s2 along width

Q: A skydiver jumped out of a plane to shoot a skydiving scene for a certain spy movie. At what point…

A:

Q: • You are riding on a Jet Ski at an angle of 35° upstream on a riverflowing with a speed of 2.8…

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Q: A projectile is launched with an initial speed of 200m/s at an angle of 60° with respect to the…

A:

Q: A red train traveling at 72 km/h and a green train traveling at 144 km/h are headed toward each…

A: The formula for the distance traveled by the trains before they come to rest is:

Q: A particle is projected with a velocity such that its range on the horizontal plane is twice the…

A:

Q: Verify that the coin dropped by the airline passenger in the Example 3.8 travels 144 m horizontally…

A: Given: The coin dropped by the airline passenger travels 144 m horizontally while falling 1.50m in…

Q: lative to a cruise ship.  He walks at a speed of 3.2 m/s in a direction 27° east of north relative…

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Relativistic Energy and Momentum

According to classical physics, time flow is the same for every observer. But according to einstein's theory, time flow is different for different observers. The idea that time flow is not the same for all may sound strange because we may not experience this effect in everyday life. This effect is only observed when an object moves with some velocity comparable to the velocity of light. This velocity is termed relativistic velocity.