ZuoTi.Pro
Question

A mass of 2 kg has a force of 70 Newtons applied to it in the...

A mass of 2 kg has a force of 70 Newtons applied to it in the +x direction on a horizontal surface with friction. It has overcome static friction and moves 4 meters over the surface with friction. As it moves over the surface, its speed changes from 9 m/s to 12 m/s. What is the amount of friction acting on the mass in Newtons?

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

Homework Answers

Answer #1

Fnet*d = change in kinetic energy

Fnet *4 = 0.5x2(122-92)

Fnet = 15.75 N

​​​​​​​force of friction = 70 - 15.75 = 54.25 N

0 0
Add a comment
Know the answer?
Add Answer to:
A mass of 2 kg has a force of 70 Newtons applied to it in the...
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

  • 4) A mass of 3 kg has a force of 73 Newtons applied to it in...

    4) A mass of 3 kg has a force of 73 Newtons applied to it in the +x direction on a horizontal surface with friction. It has overcome static friction and moves 4 meters over the surface with friction. As it moves over the surface, its speed changes from 9 m/s to 12 m/s. What is the amount of friction acting on the mass in Newtons?

  • 2) A mass of 8 kg has a force of 42 Newtons applied to it in...

    2) A mass of 8 kg has a force of 42 Newtons applied to it in the +x direction on a horizontal surface with friction. It has overcome static friction and moves 4 meters over the surface with friction. What is the work done by the normal force and the weight in Joules? In other words, determine the work done by the weight and normal force and add them together.

  • QUESTION 5 A mass of 12 kg is placed on a horizontal surface with friction with...

    QUESTION 5 A mass of 12 kg is placed on a horizontal surface with friction with a coefficient of static friction of 0.81 and coefficient of kinetic friction of 0.44. A force of 13 Newtons is applied in the -y direction and a force of 16 Newtons is also applied in the -y direction. Another force is applied in the +x direction (see sketch). The force applied in the +x direction is increased until it is 1.9 times the force...

  • A mass of 7 kg is resting on a horizontal, frictionless surface. Force 1 is applied...

    A mass of 7 kg is resting on a horizontal, frictionless surface. Force 1 is applied to it at 23 degrees below the horizontal, force 2 has a magnitude of 19 N and is applied vertically downward, force 3 has a magnitude of 3 N and is applied vertically upwards, and force 4 has a magnitude of 21 N and is applied in the-x direction to the object. When these forces are applied to the object, the object moves 9...

  • 3) A mass of 5 kg is resting on a horizontal, frictionless surface. Force 1 is...

    3) A mass of 5 kg is resting on a horizontal, frictionless surface. Force 1 is applied to it at 20 degrees below the horizontal in the -x direction, force 2 has a magnitude of 88 N and is applied in the +x direction , and force 3 has a magnitude of 25 N and is applied vertically downwards. When these forces are applied, the normal force acting on the mass is twice the amount of its weight. Also, when...

  • A mass of 4 kg is placed on a horizontal surface with a coefficient of kinetic...

    A mass of 4 kg is placed on a horizontal surface with a coefficient of kinetic friction of 0.29. A force is applied vertically downward to it and another force of 88 Newtons is applied at 11 degrees below the horizontal. As it moves 9 meters in the +x direction it loses 194 Joules of kinetic energy. What is the amount of the force which is applied downward in Newtons? * the answers is 316.17, but how do you get...

  • A mass of 12 kg is resting on a horizontal surface without friction. A force of...

    A mass of 12 kg is resting on a horizontal surface without friction. A force of 107 Newtons is applied in the +x direction, a force of 13 Newtons is applied in the -x direction, and a force of 11 Newtons is applied in the -y direction (downward). What is the acceleration of the mass in m/s2? If in the -x direction, include a negative sign.

  • A mass of 7 kg rests on a floor with friction. One force is applied vertically...

    A mass of 7 kg rests on a floor with friction. One force is applied vertically downward of 23 Newtons and another force is applied in the +x direction such that it just begins to move the mass. The force of 23 Newtons is then applied vertically upwards instead of downwards and another force is applied in the +x direction which just begins to move the mass that force is 141 Newtons less than the first case. What is the...

  • 1) A mass of 8 kg rests on a floor with friction. One force is applied...

    1) A mass of 8 kg rests on a floor with friction. One force is applied vertically downward of 21 Newtons and another force is applied in the +x direction such that it just begins to move the mass. The force of 21 Newtons is then applied vertically upwards instead of downwards and another force is applied in the +x direction which just begins to move the mass that force is 137 Newtons less than the first case. What is...

  • 1. A 3.00 kg mass is initially at rest when it is subjected to an applied...

    1. A 3.00 kg mass is initially at rest when it is subjected to an applied force directed in the +x direction and the force of kinetic friction while upon a horizontal surface. The work done by the applied force on the mass is known to be 25.0 J over a particular time interval. a) If the speed of the mass is measured to be 3.50 m/s at the end of the time interval, what is the net work done?...

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