A box rests on a flatbed truck moving downhill. Find the minimum stopping distance if the box must not slide forward.

A crate rests on a truck which is traveling at speed V= 26 m/sec down a hill inclined at angle b= 8 degrees. The coefficient of friction between crate and truckbed is f= .50. Find the shortest stopping distance such that the crate does not slide forward. SEE ATTACHMENT #1 for a diagram showing parameters.

Block B is on Block A on a table. Find maximum force P on Block A such that B does not slide off.

Block B whose weight B= 22 nt, is placed on top of Block A whose weight is A= 44 nt. The coefficient of friction for all surfaces is f= .20. A horizontal force P is applied to A to slide both objects across the horizontal table. Find the maximum force P such that block B does not slide relative to Block A. SEE ATTACHMENT #1 for a diagram with parameters.

A car moves over the arc of a bridge. Find the maximum speed possible if the car is not to lose contact.

On a country road, a car whose mass is 1800 kg drives over a bridge which forms a circular arc whose radius is 80 meters. PART a. Find the maximum speed of the car at the highest point of the bridge, in order that the car barely remains in contact. PART b. If the speed of the car at the highest point is 21 m/sec, find the normal force the bridge exerts on the car.

A thin rod with evenly spaced masses attached rotates in space. Find the tension in each rod.

A thin rod of negligible mass is 6 meters long. Five equal masses, each M= 2.5 kg, are attached to the rod evenly spaced 1.2 meters apart. In gravity free space, the system rotates about the center of the rod, completing 15 revolutions every 6 seconds. Find the tension in each of the sections of the rod. SEE ATTACHMENT #1 for a diagam showing parameters and basic equations (1) and (2).

Newton's laws of Motion

If a beach ball with mass 0.0800kg is thrown vertically upward in a vaccum, so there is no drag force on it, it reaches a height of 10.0m. If the ball is thrown upward with the same initial velocity but in air instead of vacuum, its maximum height is 8.4m. What is the drag force on the ball, assuming that it is constant during the upward motion of the ball?