Question

7) A 4.0-kg block is on a frictionless horizontal surface. The block is at rest when, at t = 0, a force (magnitude F = 8.3 N)
0 0
Add a comment Improve this question Transcribed image text
Answer #1

7 38 fcopo F 8.3N M 4 kg 4 F caso (6-3) Cos 38° a 4 a = 1.635 1 m m/s2 Velocity after t = 3 sec n = ut at 0 + + (1-6351)(3) m

Add a comment
Know the answer?
Add Answer to:
7) A 4.0-kg block is on a frictionless horizontal surface. The block is at rest when,...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

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
  • 1. A 20.0-kg block is initially at rest on a horizontal surface. A horizontal force F...

    1. A 20.0-kg block is initially at rest on a horizontal surface. A horizontal force F of magnitude 300 N and a vertical force P are then applied to the block. The coefficient of friction for the block and surface are s-0.400 and 4-0.200. a) Determine the magnitude of the frictional force acting on the block if the magnitude of Pis 60.0 N. (8 points) b) Determine the magnitude of the frictional force acting on the block if the magnitude...

  • A 3.1 kg block is initially at rest on a horizontal frictionless surface when a horizontal...

    A 3.1 kg block is initially at rest on a horizontal frictionless surface when a horizontal force in the positive direction of an x axis is applied to the block. The force is given by F(x) = (6.8-x^2) i N, where x is in meters and the initial position of the block is x = 0. (a) What is the kinetic energy of the block as it passes through x = 3.9 m? (b) What is the maximum kinetic energy...

  • a A BLOCK OF MASS POOHBO m 4.0 kg IS AT REST ON A HORIZONTAL FRICTIONLESS...

    a A BLOCK OF MASS POOHBO m 4.0 kg IS AT REST ON A HORIZONTAL FRICTIONLESS FIOR. AT TIME T=0 HORIZONTAL FORCE F = Exi IS APPLIED TO THE BIOCK .AT AN INSTANT of t LATER THE BLOCK IS AT x = 20th (X IS IN METERS) FROM THE BLOCKS INITIAL POSITION, PArT a FIND EX, THE X-COMPONENT OF THE FORCE AS FUNCTION OF TIME U x = 0 Fx (+) 2 PART 3) FIND THE INS TATANEOUS POWER CREATED...

  • a A BLOCK OF MASS POOHBO m 4.0 kg IS AT REST ON A HORIZONTAL FRICTIONLESS...

    a A BLOCK OF MASS POOHBO m 4.0 kg IS AT REST ON A HORIZONTAL FRICTIONLESS FIOR. AT TIME T=0 HORIZONTAL FORCE F = Exi IS APPLIED TO THE BIOCK .AT AN INSTANT of t LATER THE BLOCK IS AT x = 20th (X IS IN METERS) FROM THE BLOCKS INITIAL POSITION, PArT a FIND EX, THE X-COMPONENT OF THE FORCE AS FUNCTION OF TIME U x = 0 Fx (+) 2 PART 3) FIND THE INS TATANEOUS POWER CREATED...

  • A 2.0 kg block starts from rest. It is pushed across a rough horizontal surface by...

    A 2.0 kg block starts from rest. It is pushed across a rough horizontal surface by a force F (magnitude of F = 8.0 N) directed at a 40° angle as shown. The block is found to accelerate along the surface at 2.0 m/s2. Prove that there is a frictional force acting on the block F-8.0 N 40° 40 2.0 kg

  • A 1.0-kg block (Block 1) at rest on a horizontal frictionless surface is connected to unstretched...

    A 1.0-kg block (Block 1) at rest on a horizontal frictionless surface is connected to unstretched spring Ck 400 N/m) whose other end is fixed. A 2.0-kg block (Block 2) moving at 4.0 m/s collides with Block 1. Block 2 is found to move leftward with a speed of 1 m/s after collision. (1) What is the speed of Block 1 after collision? (6 pts) (2) What maximum compression of the spring occurs when Block I momentarily stops? (6 pts)...

  • A block of ice (m = 14.0 kg) with an attached rope is at rest on...

    A block of ice (m = 14.0 kg) with an attached rope is at rest on a frictionless surface. You pull the block with a force of 91.0 N for 1.41 s at an angle of 18.0°. (The angle is above the horizontal.) (a) Determine the magnitude of each force acting on the block of ice while you are pulling. Fpull = N Fg = N FN = N (b) With what speed is the ice moving after you are...

  • 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...

  • A 5.94 kg block located on a horizontal frictionless floor is pulled by a cord that...

    A 5.94 kg block located on a horizontal frictionless floor is pulled by a cord that exerts a force F=11.7N at an angle theta=21.0degrees above the horizontal, as shown. What is the magnitude of the acceleration of the block when the force is applied?

  • Starting from rest at 0, a 5.0-kg block is pulled horizontal across a surface by a constant horizontal force having a magnitude of 12 N

    Starting from rest at 0, a 5.0-kg block is pulled horizontal across a surface by a constant horizontal force having a magnitude of 12 N. Ifthe coefficient of friction between the block and the surface is 0.20, at what rate is the 12-N force doing work at  t = 5.0s? 0.12 kW 0.14kW 0.13 kW 26 W 12 W

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