![]() Find the force F exerted by the four fingers. Both forces act perpendicular to the tray, which is being held parallel to the ground. On the tray is a 1.00 kg plate of food and a 0.250 kg cup of coffee. What is the coefficient of friction between the toboggan and the snow A. The mass of the tray itself is 0.200 kg, and its center of gravity is located at its geometrical center. A 45kg toboggan and rider decelerate on level show at 0.53m/s 2. A lunch tray is being held in one hand, as shown in the drawing. The system of interest is the wagon and its rider. 2 Its average angular acceleration is 328 rad/s. Which has more mass: a kilogram of cotton balls or a kilogram of gold Solution. ![]() An electric circular saw is designed to reach its final angular speed, starting from rest, in 1.50 s. (b) Ignoring air resistance, determine how high the block/bullet system rises above the muzzle opening of the rifle. (a) Using the conservation of linear momentum, find the velocity of the block/bullet system immediately after the collision. When the rifle is fired, an 8.00 g bullet (velocity = 8.00 × 2 10 m/s, straight upward) becomes completely embedded in the block. A 3.00 kg block of wood rests on the muzzle opening of a vertically oriented rifle, the stock of the rifle being firmly planted on the ground. At a speed of 19.0 m/s, what is the radius of the tightest unbanked turn that the driver can handle? 5. The coefficient of static friction between the tires of a motorcycle and the road is µ s = 0.56. Find the tension in the section of wire that is longer. Find the tension in the section of wire that is shorter. The limb exerts a downward force of 151.0 N on the wire, depressing it 0.200 m below the horizontal. Thus, the wire between the posts is divided into a shorter section and a longer section. It comes to rest across a barbed wire fence, one-fifth of the way between two fence posts, which are 4.00 m apart. Physics B and AP Physics C that were appropriate for the AP B. During a storm, a limb falls from a tree. IMPORTANT: This book is a compilation of all the problems published by College Board in AP. What is the speed of the ball just before impact? 3. Find the time for the ball to come down on the green. The ball leaves her club with a velocity of 43.0 m/s at an angle of 40.0° to the ground. A golfer standing on a fairway hits a shot to a green that is elevated 6.0 m above the point where she is standing. ![]() This average velocity results, because she hikes 6.44 km with an average velocity of 2.68 m/s, due west, turns around, and hikes with an average velocity of 0.477 m/s, due east. In reaching her destination, a backpacker walks with an average velocity of 1.34 m/s, due west. What is the snowmobile's average acceleration during each of the segments A, B, and C? B. A snowmobile moves according to the velocity-time graph shown. ![]() Physics 2010 Summer 2011 REVIEW FOR FINAL EXAM 1. ![]()
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