Suppose you have a 115-kg wooden crate resting on a wood floor. (?k = 0.3 and ?s = 0.5) (a) What maximum force (in N) can you exert horizontally on the crate without moving it?  N (b) If you continue to exert this force (in m/s2) once the crate starts to slip, what will the magnitude of its acceleration then be?  m/s2

An object of mass 5 kg is acted on by two forces F1 = 6 i N and  F2 = 7 j N. What is the magnitude of the net acceleration? Give your answer in m/s2 to 2 sf.  The magnitude must be a positive number.

Mass 1 = 3.5 kg brick is placed on an inclined plane which forms an angle of 25° with the horizontal.  There is a string attached to the brick that passes over a pulley and connects to a Mass 2 = 1.15 kg.  The coefficient of static friction between the brick and the plane is 0.25.What is the acceleration of the brick?What is the tension in the string?

A sled and rider have a total mass of 61.0 kg. They are on a snowy hill. The coefficient of kinetic friction between the sled and the snow is 0.155. The angle of the hill's slope measured upward from the horizontal is 21.0°. What is the acceleration of the rider? |m/s² Is the acceleration greater, less than, or equal to your result if a more massive rider uses the same sled on the same hill? Explain. O Greater than: the acceleration scales according to the mass of the rider. O Greater than: the acceleration scales according to the ratio of the masses of the rider and sled. O Less than: the acceleration scales according to the ratio of the masses of the rider and sled. O Equal to: the acceleration is independent of mass. O Equal to: the acceleration scales according to the mass of the sled.

Three boxes are pulled along a horizontal frictionless floor by a constant horizontal pull P. The boxes are connected by very light horizontal strings having tensions T1 and T2 as shown in the figure. Which of the following statements about the tensions is correct? T₂ T₁ 10 20 N N 100 N O A.T1 > T2 OB.T1 = P OC. T2 = P O D. T2 > T1 P

Sphere A is attached to the ceiling of an elevator by a string. A second sphere is attached to the first one by a second string. Both strings are of negligible mass. Here m₁ = m₂ = m = 3.67 kg. = = T₁ m₁ (a) The elevator starts from rest and accelerates downward with a = 1.35 m/s². What are the tensions in the two strings in newtons? T₁ N N T2 = T₂ m₂ (b) If the elevator moves upward instead with the same acceleration what will be the tension in the two strings in newtons? Т1 T2 N N (c) The maximum tension the two strings can withstand is 89.8 N. What maximum upward acceleration (in m/s2) can the elevator have without having one of the strings break? m/s²

m₁ ܕ ܐܐܐ Felipe has a mass of my 57 kg and is climbing the pictured rope, weighted by block with m₂ 106 kg. What is the tension in the rope? 727 2 N Submit Answer Incorrect. Tries 4/10 Previous Tries

A crate of mass 38.6 kg rests on a level surface, with a coefficient of kinetic friction 0.258. You push on the crate with an applied force of 219 N. What is the magnitude of the crate s acceleration as it slides?   A 6.80 m/s^2   B 3.14 m/s^2   C 5.67 m/s^2   D 2.51 m/s^2