The inclined block A is given a constant large rightward acceleration a. Determine the range of values of θ for which block B will not slip relative to block A, regardless of how large the acceleration a is. The coefficient of static friction between the blocks is μs = 0.51

The standard test to determine the maximum lateral acceleration of a car is to drive it around a 200- ft-diameter circle painted on a level asphalt surface. The driver slowly increases the vehicle speed until he is no longer able to keep both wheel pairs straddling the line. If this maximum speed is 35 mi/hr for a 3000-lb car, determine its lateral acceleration capability an in g's and compute the magnitude F of the total friction force exerted by the pavement on the car tires. 100 ft

The 69-kg crate is stationary when the force Pis applied. Determine the resulting acceleration of the crate if (a) P = 0, (b) P = 239 N, and (c) P = 493 N. The acceleration is positive if up the slope, negative if down the slope. H, = 0.25 HE = 0.18 69 kg 18

The Block shown has a velocity v1 = 25 m/s at A and a velocity v2 = of 15 m/s as it passes point B on the incline. Calculate the coefficient of friction between the block and the plane if s= 100m and θ = 25 degree

A box with mass m = 2.75 kg rests on the top of a table. The coefficient of static friction between the box and the table is μs = 0.71 and the coefficient of kinetic friction is μk = 0.34. Write an expression for Fm the minimum force required to produce movement of the box on the top of the table. Solve numerically for the magnitude of the force Fm in Newtons. Write an expression for a, the box's acceleration, after it begins moving. (Assume the minimum force, Fm, continues to be applied.) Solve numerically for the acceleration, a in m/s2.

The 33-kg crate is stationary when the force Pis applied. Determine the resulting acceleration of the crate if (a) P = 0, (b) P = 143 N, and (c) P = 322 N. The acceleration is positive if up the slope, negative if down the slope. H, = 0.37 H = 0.29 33 kg 25 Part 1 X Incorrect Part (a). We need to decide if the block moves. The easy way to make this decision is to assume that the block does not move and then to test this assumption. If P = 0, what friction force F is needed to keep the block from moving? mg N Answer: F = i 3.034 N

A block weighing 2 KN is being dragged along a rough horizontal plane by a force P= 500N. The line of the force P makes an angle of 12 degrees above the horizontal plane. Coefficient of friction is 0.10. A. Compute the velocity of the block when it has travelled a distance of 5 m from rest. B. Compute the acceleration of the block C. Compute the velocity of the block 2 second after it moves from rest.

2. The 150-1b man lies against the cushion for which the coefficient of static friction is µ̟ = 0.5. If he rotates about the z axis with a constant speed of v = smallest angle 0 of the cushion at which he will begin to slip off. 30 ft/s, determine the -8 ft Figure: 13 PO63-064

solve and show all steps. either partial or full answer is provided

3/17 The coefficient of static friction between the flat bed of the truck and the crate it carries is 0.30. Deter- mine the minimum stopping distances which the truck can have from a speed of 70 km/h with con- stant deceleration if the crate is not to slip forward. Ans. s = 64.3 m -3 m Problem 3/17