1 .How is momentum of a body affected by its speed? by its mass? 2. Momentum...
1 .How is momentum of a body affected by its speed? by its mass?
2. Momentum can be expressed in a. N/s b. N.s c. N.m d. N.m/s
3.When the velocity of a moving object is doubled,
a. its acceleration is doubled c. its kinetic energy is doubled b. its momentum is doubled d. its potential energy is doubled
4.A body at rest has
a. constant speed b. zero momentum c. zero kinetic energy d. variable speed
5.What never changes when 2 or more objects collide is
a. the momentum of each one c. the total momentum of all the objects b. the kinetic energy of each one d. the total kinetic energy of all the objects
6.In an elastic collision
a. momentum is conserved but not KE c. momentum and KE are both conserved b. KE is conserved but not momentum d. neither momentum nor KE are conserved
Homework Answers
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1 .How is momentum of a body affected by its speed? by its
mass?
2. Momentum...
Two objects collide and stick together. Which of the following is correct? (A) Neither momentum nor...
Two objects collide and stick together. Which of the following is correct? (A) Neither momentum nor kinetic energy is conserved, (B) Both momentum and kinetic energy are conserved, (C) Momentum is conserved, but kinetic energy is not conserved, (D) Kinetic energy is conserved, but momentum is not conserved
A Two snowballs collide during a snowball fight. What can we say about their collision? Their...
A Two snowballs collide during a snowball fight. What can we say about their collision? Their total kinetic energy is conserved, but their total momentum is not. B. Neither their total momentum nor their total kinetic energy is conserved. c. Their total kinetic energy is not conserved, but their total momentum is. OD All energy is released upon the collision and dispersed. ОЕ Their total momentum and their total kinetic energy is conserved.
A bullet of mass Mb is fired horizontally with speed Vi at a wooden block of...
A bullet of mass Mb is fired horizontally with speed Vi at a wooden block of mass Mw resting on a frictionless table. The bullet hits the block and becomes completely embedded within it. After the bullet has come to rest within the block, the block, with the bullet in it, is traveling at speed Vf . 1)Which of the following best describes this collision? a)perfectly elastic b)partially inelastic c)perfectly inelastic 2) Which of the following quantities, if any, are...
with an initial speed vo. The projectile rises i and falls straight back down to the...
with an initial speed vo. The projectile rises i and falls straight back down to the ground at zero height. What is total work done by the agent that fired the projectile during this trajectory? A) +mghmax B) +mgho D) -mg(2hmax - ho) C) zero E-mgho 14. Consider the following collision: Box 1 of mass m, moving to the right V/2, collides with Box 2 of mass 2m, initially at rest. Immediately after the collision, Box 1 is moving left...
1. Two objects collide and stick together. Kinetic energy Select one: a. unable to determine with...
1. Two objects collide and stick together. Kinetic energy Select one: a. unable to determine with the information. b. Kinetic energy is conserved. c. Kinetic energy is not conserved. d. is conserved only if the environment is frictionless. 2. A ball of mass 0.10 kg is dropped from a height of 12 m. Its momentum when it strikes the ground is Select one: a. 2.4 kg·m/s. b. 1.8 kg·m/s. c. 1.5 kg·m/s. d. 4.8 kg·m/s. 3. If you double the...
Contrast and compare elastic and inelastic collisions. Question 4 options: Both elastic and inelastic collisions have...
Contrast and compare elastic and inelastic collisions.
Question 4 options:
Both elastic and inelastic collisions have conservation of
momentum if there are no outside forces. They are different in that
elastic collisions bounce and inelastic collisions stick, and
kinetic energy is conserved in inelastic collisions.
They are basically the same thing, except the units are
different.
Elastic collisions do not have conservation of momentum and
inelastic collisions have conservation of momentum if there are no
outside forces. They are different...
17. A projectile of mass m is fired straight up from an initial height ho with...
17. A projectile of mass m is fired straight up from an initial height ho with an initial speod vo. The projectile rises to a maximum height of hesa and falls straight back down to the ground at zero height. What is the total work done by the force of gravity during this trajectory? Vo ho m. If a hole appears in 18. The water level in a city storagetower is at a height of 40 the tower at a...
1. A 30.00 kg mass moving with the velocity of 10 m/s. The momentum of the...
1. A 30.00 kg mass moving with the velocity of 10 m/s. The momentum of the body will be A. 144.2 kg m/s. B. 187.8 kg m/s. C. 320.0 kg m/s. D. 442.4 kg m/s. E. None of the above 2. Out of the following which one is not a vector quantity? A. Force B. Impulse C. Mass D. velocity 3. Impulse is the product of which two quantities? A. Mass and Time B. Mass and Momentum C. Force and...
Please answer all the questions if possible :) thank you 11- CONSERVATION OF UNEAR MOMENTUM IN...
Please answer all the questions if possible :) thank
you
11- CONSERVATION OF UNEAR MOMENTUM IN 2-D Q1)(4) Performing this experiment, you get the following data: Mass of balls 30 g each Before collision: Speed of ball A 5.00 /s After collision: Ball A going at 3.0 m/s at 30 Calculate the speed at which ball B is going. Ball B is stationary. a) 2.40 m/s b) 1.50 m/s c) 2.83 m/s d) 2.05 m/s (1+1+1+1) Circle the correct answers:...
A Two snowballs collide during a snowball fight. What can we say about their collision? Their total kinetic energy is conserved, but their total momentum is not. B. Neither their total momentum nor their total kinetic energy is conserved. c. Their total kinetic energy is not conserved, but their total momentum is. OD All energy is released upon the collision and dispersed. ОЕ Their total momentum and their total kinetic energy is conserved.
with an initial speed vo. The projectile rises i and falls straight back down to the ground at zero height. What is total work done by the agent that fired the projectile during this trajectory? A) +mghmax B) +mgho D) -mg(2hmax - ho) C) zero E-mgho 14. Consider the following collision: Box 1 of mass m, moving to the right V/2, collides with Box 2 of mass 2m, initially at rest. Immediately after the collision, Box 1 is moving left...
Contrast and compare elastic and inelastic collisions.
Question 4 options:
Both elastic and inelastic collisions have conservation of
momentum if there are no outside forces. They are different in that
elastic collisions bounce and inelastic collisions stick, and
kinetic energy is conserved in inelastic collisions.
They are basically the same thing, except the units are
different.
Elastic collisions do not have conservation of momentum and
inelastic collisions have conservation of momentum if there are no
outside forces. They are different...
17. A projectile of mass m is fired straight up from an initial height ho with an initial speod vo. The projectile rises to a maximum height of hesa and falls straight back down to the ground at zero height. What is the total work done by the force of gravity during this trajectory? Vo ho m. If a hole appears in 18. The water level in a city storagetower is at a height of 40 the tower at a...
1. A 30.00 kg mass moving with the velocity of 10 m/s. The momentum of the body will be A. 144.2 kg m/s. B. 187.8 kg m/s. C. 320.0 kg m/s. D. 442.4 kg m/s. E. None of the above 2. Out of the following which one is not a vector quantity? A. Force B. Impulse C. Mass D. velocity 3. Impulse is the product of which two quantities? A. Mass and Time B. Mass and Momentum C. Force and...
Please answer all the questions if possible :) thank
you
11- CONSERVATION OF UNEAR MOMENTUM IN 2-D Q1)(4) Performing this experiment, you get the following data: Mass of balls 30 g each Before collision: Speed of ball A 5.00 /s After collision: Ball A going at 3.0 m/s at 30 Calculate the speed at which ball B is going. Ball B is stationary. a) 2.40 m/s b) 1.50 m/s c) 2.83 m/s d) 2.05 m/s (1+1+1+1) Circle the correct answers:...
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