If a 3kg box is moving down a ramp with ramp angle 15° and a friction coefficient μk of 0.4, what is the magnitude of the force of friction on the box (in N)?
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If a 3kg box is moving down a ramp with ramp angle 15° and a friction coefficient μk of 0.4, what is the magnitude of the
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- At what angle & must the 520-lb force be applied in order that the resultant R of the two forces have a magnitude of 1100 lb? For this condition what will be the angle /ß between R and the horizontal? 520 lb 770 lb Answers: i B- i10. a. In investigating an acccident, police find skid marks left by a car as the driver slammed on the brakes and the car skidded to a halt. The skid marks form a straight line 3.9375 m long on a flat road. It was raining and the coefficient of friction was 0.32125. The mass of the car is 1486.75 kg. What is the angle between the friction force and the displacment of the car? 180 Previous submissions: b. Using W = F Ax cos 0, what was the work done by friction? -18430.10 Previous submissions: c. What was the AKE? -18430.10 Previous submissions: d. What was the initial velocity of the car? Take this to be positive. 4.97 J J m/s incorrect incorrect V incorrect incorrectThe tolerance is -+1 to the 2nd significant digit.
- A crate is pulled to the right with a force of 72.2 N, to the left with a force of 119.2 N, upward with a force of 590.8 N, and downward with a force of 244.2 N. What is the net external force in the x direction? Answer in units of N.You are pushing a rubber crate against a concrete floor. The two surfaces have a static coefficient of friction of 0.61 and a kinetic coefficient of friction of 0.49. The floor is horizontal, and the crate has a mass of 25.0 kg, and is initially at rest. You are pushing with a horizontal force of 100 N. What is the magnitude of the force of friction in this case? Give your answer in units of N, to three significant figures.A cable attached to a block of mass 10.05 kg pulls the block along a horizontal floor at a constant velocity. If the tension in the cable is 6.23 N, what is the coefficient of kinetic friction between the block and the floor?
- Two ropes hold a crate with weight (w) of 125 N as shown below. Find the tensions T1 and T2 in the ropes. (Hint: Move the vectors so that they are tail to head to form a triangle. The vector sum of T1 + T2 must equal the crate weight for equilibrium.) 42.0° 30.0° T т, Crate W O T1 = 114 N & T2 = 88 N O T1 = 114 N & T2 = 98 N O T1 = 124 N & T2 = 88 N O T1 = 134 N & T2 = 68 NTwo ropes are attached to a tire on the ground. The first rope exerts a force of 300. N in a direction 26.0 degrees west of north. The second rope exerts a force of 167. N in a direction 56.0 degrees east of south. Find the magnitude (in N) of the net force on the tire.Forces of F1 = 1150 N, F2 = 875 N, and F3 = 1450 N are applied at the same point. The angle between F1 and F2 is 90.0 degrees and the angle between F2 and F3 is 120.0 degrees. F2 is between F1 and F3. Find the resultant force.
- A 5N horizontal force is applied to the block, pushing toward the right, but the block does not move. If coefficient of static friction is 0.1 and object mass is 20 Kg, what is the force of static friction of the surface on the block. (Take g=10 m/s^2)If a force is applied with a magnitude of 200 N at 30 degrees above the horizontal, what are the horizontal and vertical components of this force? Group of answer choices Fa,h= 136.667 N Fa,v= 87.334 N Fa,h= 200 N Fa,v= 200 N Fa,h= 173.2 N Fa,v= 100 N Fa,h= 150 n Fa,v= 50 NYou are pushing a wooden crate against a rubber floor. The two surfaces have a static coefficient of friction of 0.45 and a kinetic coefficient of friction of 0.38. The floor is horizontal, and the crate has a mass of 25.0 kg, and is initially at rest. You are pushing with a horizontal force of 155 N. What is the magnitude of the force of friction in this case? Give your answer in units of N, to three significant figures.