The coefficients of friction between the block aha the rail are us = 0.25 and uk = 0.20. Given: P2 = 200 N. P1 350 P2 Find the magnitude and direction of the smallest force P, required to start the block moving up the rail. (You must provide an answer before moving on to the next part.) The magnitude and direction of the smallest force P1 required to start the block moving up the rail is v (Click to select)

please answer this question using different/ similar values.  many thanks !

i need help with this questsion please

An ideal spring, with a pointer attached to its end, hangs next to a scale. With a 100 N weight attached, the pointer indicates "40" on the scale as shown. Using a 200N weight instead results in "60" on the scale. Using an unknown weight X results in "30" on the scale. The weight X is: Hint: Draw the force - Displacement diagram. 100 N O 1.20 N O 2.30 N O 3.40 N O 4.50 N O 5.70 N

4. For this series of 4 questions, two blocks, A and B, are connected using the cable and pulley system as shown. (The cable and pulley system is friction-less and weight- less.) The coefficient of kinetic friction between block A and the inclined plane is μ = 0. 2. Initially the blocks are moving but eventually come to stop. You will be asked to solve for different things. Please pay attention: the numbers may change from problem to problem since they are randomized. 4) If block A weighs 100 lb and block B weighs 65 lb, and initially block A moves down the plane at a velocity of 7.1 ft/s, determine how far block A will move along the surface until it stops. Your answer must include 2 places after the decimal point and the proper unit. Take g = 32.2 ft/s². A Your Answer: Answer B units C D

4. For this series of 4 questions, two blocks, A and B, are connected using the cable and pulley system as shown. (The cable and pulley system is friction-less and weight- less.) The coefficient of kinetic friction between block A and the inclined plane is μk = 0. 2. Initially the blocks are moving but eventually come to stop. You will be asked to solve for different things. Please pay attention: the numbers may change from problem to problem since they are randomized. 3) If the blocks and the cable-pulley system are considered as one system, during this process from the blocks moving to them coming to stop, which forces are doing work to this system? A B C D Weight of block B. Weight of block A. Friction between block A and the incline plane. Tension force in the cable connecting to block B. Tension force in the cable connecting to block A.

Statics an 2.18 A 200# stone is being lifted off the ground by a lev- ering bar. Determine the push P required to keep the stone in the position shown. Varignon's Theorem The French mathematician Pierre Varignon developed a very important theorem of statics. It states that the mo- ment of a force about a point (axis) is equal to the algebraic 1W=200* 3011 36" 47

Need only a handwritten solution only (not a typed one).

Question 2 You are playing basketball with some friends at the park when Nate Robinson, the 180 Ib(f) former New York Knicks point 0.12 m E guard and only three-time winner of the NBA Slam Dunk Contest, stops by. You are F 0.15 m 0.48 m H A curious about the forces the members of 0.48 m the hoop apparatus experience during a dunk. If Nate dunks and hangs on the rim of the hoop, find the forces supported by each 0.12 m I (B WN -0.6 m –→-– 0.75 m- member of the apparatus and the support reactions at D. Member IJ is a hand crank which can be used to adjust the height of 1.2 m the rim, and it acts as a two-force member. 3 m Post ABCD weighs 400 N and has a center of mass at point C. The assembly EFGH weighs 220 N and has a center of mass at point G. Only magnitudes are givern below, but you must still speci fy dicection based on your free bedy diagrams: Dx : 224 N Dya 1588N Mo = 1867 Nm Bx = 1031 N| By a 6lo6l N| Fx# 1031N| Fy e1992N 1.5 m 1.2 m D

Q3. As shown on the right in image below, the force Facting on the box varies with displacement s, and the coefficient in the image, C = 14. Determine the work done by force Fto the box when the box has displaced s = 1.9 m. Please pay attention: the numbers may change since they are randomized. Negative sign must be included if the work done is negative. Your answer must include 2 places after the decimal point, and proper SI unit. F (N) F 5 3 S 4 C s (m) 1 2