The 1.0 kg block in the figure is tied to the wall with a rope. It sits on top of the 2.0 kg block. The lower block is pulled to the right with a tension force of 20 N. The coefficient of kinetic friction at both the lower and upper surfaces of the 2.0 kg block is μkμk = 0.42. What is the acceleration of the 2.0 kg block

A crate that has a mass of m = 3.5 kg rests on a horizontal plane. The coefficient of static friction, μs, is 0.25. A horizontal force, F, is applied to the crate, and it is just enough to get the crate to begin moving.a. write an expression for the sum of the forces in the x-direction using that Ff is the static friction force, FN is the normal force and Fg is the weight.b. write an expression for the sum of forces in the y-direction using the same coordinate systemc. calculate the magnitude of F, in newtons, Ff is at its maximum

Santa Claus tries to drag his bag of presents along a horizontal surface by a red rope that is angled at 55 degrees above the horizontal. Santa Claus applies a force due to tension of 4500N along the red rope. This is the minimum force to just start the bag in motion. The coefficient of kinetic friction between the bag and the ground is 0.3 and the coefficient of static friction is 0.5. What is the mass of the bag?

The m = 8.40 kg block in the figure(Figure 1) is held in place by the massless rope passing over two massless, frictionless pulleys. Figure T₂ TA T m T3 Ts F 1 of 1 Part A Find the tensions T₁ to T and the magnitude of force F. Enter your answers numerically separated by commas. 15| ΑΣΦ T1, T2, T3, T4, T5, F= 82.32,41.16 Your submission doesn't have the correct number of answers. Answers should be separated with a comma. No credit lost. Try again. Submit Previous Answers Request Answer Provide Feedback P Pearson ? N Next >

you are driving down the road and are speeding. You apply the brakes on your car until you slow down to 22.4 m/s. A computer plots the force versus time for the vehichle and then measures the area under the curve. The area is -18950 N per s. The total breaking is 5.4 seconds. The combined mass of the car is 1200 kg. How fast were you moving before applying the breaks? What is the average force applied by the road to thr car before breaking?

ou are pushing your friend in his wheelchair. You are both taking his dog, Wrathbone, to the vet. Wrathbone is 5 kg and is sitting in your friend’s lap. You decide to increase the wheelchair’s acceleration to 7 ms2 in order to get up a steep ramp. If your friend has a mass of 46 kg and his wheelchair has a mass of 16 kg. What is the force you are applying?

A student is pulling a crate with a mass of 66.6 kg along a horizontal frictionless floor with a rope that’s inclined at an angle θ = 30.0° above the horizontal as shown. The tension force is measured to be 239 N. What is the magnitude of the normal force on the crate from the floor, in Newtons? Use g = 10.0 m/s2.    Your answer needs to have 3 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement.

In the figure, three masses are attached by cords that loop over frictionless pulleys. Block B lies on a frictionless table. mA = 5.4 kg, mB = 6.2 kg, and mc = 10.7 kg. Find the tension in the cord to the right (between masses B and C) once the blocks have been released and are free to move. Your answer should be in N: Question Help: Read B

Blocks 1 and 2 are moving to the right on a frictionless surface by the tension TB = 36 N as shown. m1 = 2.0 kg, and m2 = 3.2 kg. What is the magnitude of the acceleration of block 2, in m/s²? Your answer needs to have 2 significant figures, including the negative sign in your answer if needed. Do not include the positive sign if the answer is positive. No unit is needed in your answer, it is already given in the question statement. m₁ TA m₂ TB

A contestant in a winter sporting event pushes a 45 kg block of ice in the positive direction across a frozen lake as shown in the figure. Assume the coefficients of static and kinetic friction are μs=0.1 and μk=0.03. a. Calculate the minimum force F he must exert to get the block sliding across the ice in newtons.  b. What is its acceleration once it starts to move, if that force is maintained in m/s2?