Block 2 shown below slides along a frictionless table as block 1 falls. Both blocks are attached by a frictionless pulley. Find the speed of the blocks after they have each moved 2.0 m. Assume that they start at rest and that the pulley has negligible mass. Use m₁ = 2.0 kg and m₂ = 4.0 kg. 2 2 Dr 1
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- 1.At an amusement park, a swimmer uses a water slide to enter the main pool. If the swimmer starts at rest, slides without friction, and descends through a vertical height of 2.31 m, what is her speed at the bottom of the slide?Draw and Explain.1. A 100.0 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 300 N. For the first 13.0 m the floor is frictionless, and for the next 20.0 m the coefficient of kinetic friction is 0.26. What is the final speed of the crate?(g = 9.8 m/s2) m/s 60 ssfocSolve it correctly please. I will rate accordingly.
- A 2.1 x 103-kg car starts from rest at the top of a 5.5-m-long driveway that is inclined at 15° with the horizontal. If an average friction force of 4.0 x 103 N impedes the motion, find the speed of the car at the bottom of the driveway. m/s Need Help? Read It MY NOTES ASK YOUR TEACHERQ 12 Your answer is partially correct. Try again. In the figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.0 kg, block B has a mass of 2.2 kg, and angle e is 27 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic energy when block B has fallen 21 cm? Number 2.47 Units the tolerance is +/-2% Click if you would like to Show Work for this question: Open Show Work SHOW HINT LINK TO TEXT LINK TO SAMPLE OBLEM LINK TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM VIDEO MINI-LECTURE 10:37 PM search ENG 4/4/2021 17 12 1home 3. 4 9. 7. 8. R. T. 00
- I am having trouble with this homework problem, any help would be greatly appreciated, thank you!4. The power provided by a force can also be written as P = dW /dt = F · d7/dt = F .ö. A force F = (3i – 2j + 6k)N is applied to an object moving with a velocity i = (2î – 3k) m/s. a. What is the power provided by this force? Does the object speed up or slow down or neither, if this force is the only unbalanced force acting on the object? b. Consider a force that is always perpendicular to the velocity. Does the object speed up or slow down or neither, if this force is the only unbalanced force acting on the object?A block with a mass of 2-kg is used to compress a spring x= 60 cm. The spring constant of the spring k = 200 N/m. After the block released , it slides along a level surface until comes to the bottom of a incline (0 = 20° ). If µk between the block and level and in cline surfaces is 0.2 (uk = 0.2 ). a. What is the speed of block the bottom of incline? b. What maximum height does the block slide? k=200N/m h =? Kx=60cm 2kg Hu=0.2 h=? HK = 0.2 e = 20° V. K-d=10m