The 35kg box below is being pulled with a force of F1 =100N at an angle of θ = 25◦. An additional force of F2 = 50 N is applied to the box. (a) What is the acceleration of the sled? (b) What is the normal force on the box.

A crate of mass 44.0 kg is being transported on the flatbed of a pickup truck. The coefficient of static friction between the crate and the truck's flatbed is 0.330, and the coefficient of kinetic friction is 0.150. (a) The truck accelerates forward on level ground. What is the maximum acceleration the truck can have so that the crate does not slide relative to the truck's flatbed? (Give the magnitude of the acceleration.) 3.23 ✓ m/s² (b) The truck barely exceeds this acceleration and then moves with constant acceleration, with the crate sliding along its bed. What is the acceleration of the crate relative to the ground? (Give the magnitude of the acceleration.) 1.97 X Your response differs from the correct answer by more than 10%. Double check your calculations. m/s²

A fisherman is fishing from a bridge and is using a "32.0-N test line." In other words, the line will sustain a maximum force of 32.0 N without breaking. What is the weight of the heaviest fish that can be pulled up vertically, when the line is reeled in (a) at constant speed and (b) with an acceleration whose magnitude is 2.67 m/s2?

An elevator cab that weighs 20.8 kN moves upward. What is the tension in the cable if the cab's speed is (a) increasing at a rate of 1.10 m/s2 and (b) decreasing at a rate of 1.10 m/s2?