ZuoTi.Pro
Question

A 1.0-kg cart and a 0.50-kg cart sit at different positions on a low-friction track. You...

A 1.0-kg cart and a 0.50-kg cart sit at different positions on a low-friction track. You push on the 1.0-kg cart with a constant 3.5-N force for 0.20 m . You then remove your hand, and the cart slides 0.35 m and strikes the 0.50-kg cart.By what amount does your force change the kinetic energy of the system's center of mass?

science   physics   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

olution:- Using energy conservation to find speed of 1kg cart after 0.15m (before collision) Work done by force change in KE

0 0
Add a comment
Know the answer?
Add Answer to:
A 1.0-kg cart and a 0.50-kg cart sit at different positions on a low-friction track. You...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • A 1.0-kg standard cart collides on a low-friction track with cart A. The standard cart has...

    A 1.0-kg standard cart collides on a low-friction track with cart A. The standard cart has an initial x component of velocity of +0.40 m/s, and cart A is initially at rest. After the collision the x component of velocity of the standard cart is +0.20 m/s and the x component of velocity of cart A is +0.65 m/s . After the collision, cart A continues to the end of the track and rebounds with its speed unchanged. Before the...

  • Math: 41) A 20.0-kg cart slides along a track, as shown in the figure. At point...

    Math: 41) A 20.0-kg cart slides along a track, as shown in the figure. At point A, the cart is moving at 5.0 m/s. Unless told otherwise, neglect friction and air resistance. Tob receive full credit, you must show all of your work 100 m 80 m -J Potential Energy =0 4la) What is the potential energy of the cart at point A? 20,000 J 41b) What is the kinetic energy of the cart at point B? 20,2So J

  • You push a 2 kg shopping mall cart down an aisle (how the heck is “aisle”...

    You push a 2 kg shopping mall cart down an aisle (how the heck is “aisle” pronounced “aiyo”). The cart is initially travelling at 5 m/s the moment it left your hand. A) What is the initial kinetic energy of the cart? The cart slowed to a complete stop due to friction. B) What is the final kinetic energy of the cart when it stopped? C) Then, use the work-energy theorem to find the work done by friction. D) If...

  • Two carts are sitting on air track (frictionless surface). Assume cart A has mass of .50...

    Two carts are sitting on air track (frictionless surface). Assume cart A has mass of .50 kg, cart B has mass of 1.0 kg. You push cart A and give it an initial speed of 5.0 m/s toward B which was originally at rest. The two carts stick together and move together. Right after collision, the air is turned off so the two carts slide to a stop due to kinetic friction. Assume the coefficient of kinetic friction is .20....

  • A 0.2 kg plastic cart and a 20 kg lead cart both roll without friction on...

    A 0.2 kg plastic cart and a 20 kg lead cart both roll without friction on a horizontal surface. Equal forces are used to push both carts forward a distance of 1 m, starting from rest. After traveling 1 m, is the kinetic energy of the plastic cart greater than, less than or equal to the kinetic energy of the lead cart? Explain. Match the words in the left column to the appropriate blanks in the sentences on the right....

  • You have a level track. You push a cart with mass = 0.84[kg]. You measure the...

    You have a level track. You push a cart with mass = 0.84[kg]. You measure the initial velocity to be 0.7[m s-1]. 2 seconds later, you measure the velocity to be 0.525[m s-1]. What is the work (reported in mJ) that friction did on the cart? work = [mJ] Use three sig. figs. or N/A if not enough information is given, such as change in position! Remember, that if the system gains energy, then positive work is done; otherwise the...

  • Two air-track carts move toward one another on an air track. Cart 1 has a mass...

    Two air-track carts move toward one another on an air track. Cart 1 has a mass of 0.39 kg and a speed of 0.99 m/s. Cart 2 has a mass of 0.64 kg. PART A What speed must cart 2 have if the total momentum of the system is to be zero? Express your answer using two significant figures. PART B Since the momentum of the system is zero, does it follow that the kinetic energy of the system is...

  • Two carts mounted on an air track are moving toward one another. Cart 1 has a...

    Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.2 m/s and a mass of 0.45 kg. Cart 2 has a mass of 0.62 kg. (a) If the total momentum of the system is to be zero, what is the initial speed of Cart 2 in meters per second? m/s (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is...

  • Two carts mounted on an air track are moving toward one another. Cart 1 has a...

    Two carts mounted on an air track are moving toward one another. Cart 1 has a speed of 1.1 m/s and a mass of 0.46 kg. Cart 2 has a mass of 0.74 kg (a) If the total momentum of the system is to be zero, what is the initial speed of Cart 2 in meters per second? m/s (b) Does it follow that the kinetic energy of the system is also zero since the momentum of the system is...

  • Th figure below shows a mass m=1.0 kg which is initially moving with speed v=7.2 m/s...

    Th figure below shows a mass m=1.0 kg which is initially moving with speed v=7.2 m/s at the top of a frictionless hill of height h=3.5 m. It slides down the hill until it encounters a flat section with unknown coefficient of kinetic friction Hk. If the object travels a distance D=10.9 m before reaching a speed of v/2, what is the coefficient of kinetic friction Mk? Select one: O 0.35 O 0.40 O 0.55 O 0.50 O 0.30

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT