Ꮎ m₂ m1 The figure shows two blocks 1 and 2 connected by a cable. The weight of block 1 is 6 lb slides up the incline of angle = 10 degrees while the weight of block 2 is 7 lb. The coefficients of static and kinetic friction between block 1 and the inclined surface are respectively 0.35 and 0.29. What's the tension (in lb) in the cable? What's the acceleration (in ft/s²) of the two blocks? -Answer Tension (in lb) -Answer Acceleration (in ft/s²)

The coefficient of static friction between a rubber tire and dry pavement is about 0.800. Assume that a car's engine only turns the two rear wheels and that the weight of the car is uniformly distributed over all four wheels. What limit does the coefficient of static friction place on the time fmin required for a car to accelerate from rest to 50.0 mph (22.4 m/s)? Imin = How can friction accelerate a car forward when friction opposes motion?

Two rough blocks are at rest on a slope as shown. Block A mass is 5 kg. Block B mass is 10 kg. The coefficient of static friction is 0.5 between all surfaces. y A B 1 20° Bonus 1: What is the magnitude of the static friction force from the slope on B? Bonus 2: What is the magnitude of the static friction force B exerts on A? Bonus 3: What is the magnitude of the static friction force A exerts on B?

The 118-lb force P is applied to the 250-lb crate, which is stationary before the force is applied. Determine the magnitude and direction of the friction force F exerted by the horizontal surface on the crate. The friction force is positive if to the right, negative if to the left. Assume ??= 0.48, ??= 0.38.

A box of bananas weighing 40.0 N rests on a horizontal surface.The coefficient of static friction between the box and the surfaceis 0.40, and the coefficient of kinetic friction is 0.20. What is the magnitude of the friction force if a monkey applies a horizontal force of 6.0 N to the box and the box is initially at rest?

= A car (m 1900 kg) is parked on a road that rises 12° above the horizontal. What are the magnitudes of (a) the normal force and (b) the static frictional force that the ground exerts on the tires?

A large crate is at rest on a horizontal floor. The coefficient of static friction between the crate and the floor is 0.400. A force F S is applied to the crate in a direction 30.0 above the horizontal. The minimum value of F required to get the crate to start sliding is 380 N. What is the mass of the crate?

The coefficient of static friction between hard rubber and normal street pavement is about 0.86. On how steep a hill (maximum angle) can you leave a car parked? Express your answer using two significant figures.

Two blocks are connected over a massless, frictionless pulley by a massless string, as shown in the figure. Block my has a mass of 8.00 kg and block m₂ has a mass of 3.20 kg. The angle of the incline is 30.0". The coefficients of static friction and kinetic friction between block my and the incline are 4,-0.500 and 0.400, respectively. What is the magnitude 7 of the tension in the string? m₂ T= 34 Incorrect Attempt 4 Friction N

Problem 5: In the two cases shown below, a person is standing on a scale in an elevator. The elevators are identical, and the person weighs 500 N. In both cases the elevator is moving upward, but in Case A it is accelerating upward and in Case B it is accelerating downward. A B y = 3 m/s v = 3 m/s a=2 m/s? a=2 m/s? Will the scale reading in Case A be greater than, less than, or the same as the scale reading in Case B? Explain with a calculation or in words.