An object has a kinetic energy of 234 J and a momentum of magnitude 29.0 kg...
An object has a kinetic energy of 234 J and a momentum of magnitude 29.0 kg · m/s.
(a) Find the speed of the object.
____m/s
(b) Find the mass of the object.
____kg
A rifle with a weight of 20 N fires a 5.3-g bullet with a speed of 260 m/s.
(a) Find the recoil speed of the rifle.
m/s
(b) If a 675-N man holds the rifle firmly against his shoulder,
find the recoil speed of the man and rifle.
m/s
A railroad car of mass 2.15 ✕ 104 kg moving at 3.25 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s.
(a) What is the speed of the three coupled cars after the
collision?
m/s
(b) How much kinetic energy is lost in the collision?
Homework Answers
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An object has a kinetic energy of 234 J and a momentum of
magnitude 29.0 kg...
A railroad car of mass 3.10 ✕ 104 kg moving at 3.40 m/s collides and couples...
A railroad car of mass 3.10 ✕ 104 kg moving at 3.40 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? (b) How much kinetic energy is lost in the collision?
A railroad car of mass 3.15 ✕ 104 kg moving at 2.75 m/s collides and couples...
A railroad car of mass 3.15 ✕ 104 kg moving at 2.75 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? (b) How much kinetic energy is lost in the collision?
A railroad car of mass 3.25e4 kg is moving at 3.25 m/s collides and couples with...
A railroad car of mass 3.25e4 kg is moving at 3.25 m/s collides and couples with two couples railroad cars, each of the same mass as the single car and moving in the same direction at 1.20m/s. A) what is the speed of the three coupled cars after the collision? B) how much kinetic energy is lost in the collision?
A railroad car of mass 2.95 ✕ 104 kg moving at 3.10 m/s collides and couples...
A railroad car of mass 2.95 ✕ 104 kg moving at 3.10 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? m/s (b) How much kinetic energy is lost in the collision? J
A railroad car of mass 2.45 ✕ 104 kg moving at 3.05 m/s collides and couples...
A railroad car of mass 2.45 ✕ 104 kg moving at 3.05 m/s collides and couples with two coupled railroad cars, each of the same mass as the single car and moving in the same direction at 1.20 m/s. (a) What is the speed of the three coupled cars after the collision? m/s (b) How much kinetic energy is lost in the collision? J
A railroad car of mass 2.30E+4 kg moving with a speed of 3.00 m/s collides and...
A railroad car of mass 2.30E+4 kg moving with a speed of 3.00 m/s collides and couples with two other coupled railroad cars each of the same mass that are already moving in the same direction at a speed of 1.50 m/s. What is the speed (in m/s) of the three coupled cars after the collision? Tries 0/3 How much kinetic energy (in J) is lost in the collision? Tries 0/3
8. A 3. A pitcher claims he can throw a 0.145-kg baseball with! as much momentum...
8. A 3. A pitcher claims he can throw a 0.145-kg baseball with! as much momentum as a 3.00-g bullet moving with a speed of 1.50 X 10° m/s. (a) What must the baseball's speed be if the pitcher's claim is valid? (b) Which has greater kinetic energy, the ball or the bullet? en bone break A railroad car of mass 2.00 X 10' kg maving collides and couples with two coupled to each of the same mans as the...
A railroad car moving at a speed of 3.41 m/s overtakes, collides, and couples with two...
A railroad car moving at a speed of 3.41 m/s overtakes, collides, and couples with two coupled railroad cars moving in the same direction at 1.40 m/s. All cars have a mass of mass 1.07 x 105 kg. Determine the following. (a) speed of the three coupled cars after the collision (Give your answer to at least two decimal places.) m/s (b) kinetic energy lost in the collision Additional Materials E eBook
(1) A moving object has a kinetic energy of 119 J and a momentum with magnitude...
(1) A moving object has a kinetic energy of 119 J and a momentum with magnitude of 28.0 kg·m/s. (a) Determine the mass of the object. ______ kg (b) Determine the speed of the object. ______m/s (2) A 5.1 g dart is fired into a block of wood with a mass of 24.2 g. The wood block is initially at rest on a 1.6 m tall post. After the collision, the wood block and dart land 3.4 m from the...
A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and couples with two coupled railroad cars, each of the sa...
A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and
couples with two coupled railroad cars, each of the same mass as
the single car and moving in the same direction at 1.24 m/s.
b)
How much kinetic energy is lost in the collision?
USE THIS DATA:
17400 kg; 3.27 m/s; (help me see how you get the correct answer
of 2.39e4 J.
16-4 A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and...
8. A 3. A pitcher claims he can throw a 0.145-kg baseball with! as much momentum as a 3.00-g bullet moving with a speed of 1.50 X 10° m/s. (a) What must the baseball's speed be if the pitcher's claim is valid? (b) Which has greater kinetic energy, the ball or the bullet? en bone break A railroad car of mass 2.00 X 10' kg maving collides and couples with two coupled to each of the same mans as the...
A railroad car moving at a speed of 3.41 m/s overtakes, collides, and couples with two coupled railroad cars moving in the same direction at 1.40 m/s. All cars have a mass of mass 1.07 x 105 kg. Determine the following. (a) speed of the three coupled cars after the collision (Give your answer to at least two decimal places.) m/s (b) kinetic energy lost in the collision Additional Materials E eBook
A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and
couples with two coupled railroad cars, each of the same mass as
the single car and moving in the same direction at 1.24 m/s.
b)
How much kinetic energy is lost in the collision?
USE THIS DATA:
17400 kg; 3.27 m/s; (help me see how you get the correct answer
of 2.39e4 J.
16-4 A railroad car of mass 1.85e4 kg moving at 3.14 m/s collides and...
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