Question 5 If the coefficient of static friction at contact points A and B is 0.47, calculate the maximum force P that can be used without causing the 157-kg spool to move. 0.6 m 0.9 m

AI The block D weighs 200 lbs and is connected to the block B by a cable. Block B has a weight of 160 lb acting at its center of gravity, CG,8, and Block B has a weight of 100 lb acting at its center of gravity, CG,A. The coefficient of friction between blocks A and B is uAB = 0.85. 1,15m 1.15m The coefficient of friction between block A and the ground is HAG = 0.4. a) Determine if slipping will occur between block B and block A. b) Determine if blocks A and B will tip on the ground (assume no slipping at A-B for this scenario).

Question 1 Find the largest weight W that the man can lift at constant motion and sustain assuming that all the pulleys are frictionless. The man has the mass of 80 kg and coefficient of static friction between his feet and the ground is µs = 0.6. B C A

1. The two 890 N blocks are pushed apart by the 150 wedge of negligible weight. The angle of static friction is 12° at all surfaces. Determine the force P required to start the blocks moving. 890N 890N

Calculate the horizontal force P on the light 14° wedge necessary to initiate movement of the 49-kg cylinder. The coefficient of static friction for both pairs of contacting surfaces is 0.40. Also determine the friction force FB at point B. (Caution: Check carefully your assumption of where slipping occurs.) P Answers: P= FB = i i 49 kg B N N A

Determine the rang of values which the mass m0 may have so that the block 150 kg shown in figure will neither start moving up the plane nor slip down the plane. The coefficient of static friction is 0.3. 150 Kg 20° mo

Determine the force P required to force the  13° wedge under the  82-kg uniform crate which rests against the small stop at A. The coefficient of friction for all surfaces is  0.31.

i need the answer quickly

A wooden sled supporting a large stone is pulled up the track inclined at 15ᵒ with the horizontal. The combined mass between the sled and the stone is 750 kg and the coefficient of friction between the sled runner and the track is are μs = 0.40 and μk = 0.30. Determine the force P required to: a. start the sled up the track b. keep the sled from moving after it has been started c. to prevent the sled from sliding down.

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