Boat Definition and 359 Threads

Hi, I have a physics test on Monday and would like some help with these problems. Kinematics problems: 1. A boat starting from rest on a lake accelerates in a straight line at a constant rate of 2.0 m/s^2 for 6.0 s. How far does the boat travel during this time? 2. A bullet traveling...

The mass of a boat is M=80kg, the mass of a boy is m=36kg. The boy moves from the stern to the bows of the boat. What distance does the boat move, if its length is 2.8m? At such low speeds the water resistance may be neglected. Hint: Center of mass remains at rest. Please help because I am...

The mass of a boat is M=80kg, the mass of a boy is m=36kg. The boy moves from the stern to the bows of the boat. What distance does the boat move, if its length is 2.8m? At such low speeds the water resistance may be neglected. Hint: Center of mass remains at rest. Please help me because I...

I'm really fired up about physics now. But I can't puzzle out the following: Q. When you float in fresh water, the buoyant force that acts on you is equal to your weight. When you float higher in the high-density water of Salt Lake, the B.F. that acts on you is actually: 1) greater than your...

I really need help solving question #2 from the following webpage: http://www.math.psu.edu/anand/M141/applied2/ . I've attempted to solve this, but looking at my answers, I'm not overly confident. In part a, I'm suppose to prove that tractrix somehow, and in part b, I believe I am to just...

I am stuck on this problem... A rowboat measures 4ft wide by 10ft long. How much (in inches) will the boat sink into the water when two 200 lbs me get into the boat? A: I am having a hard time getting the volume of the boat…does anyone have a suggestion? This was my plan: W boat=...

A question (and no, it's not for uni work). A boat sits in the water. Attached to the front of the boat is a bucket (or some other vessel), submerged. The bucket is sort 0of a black hole for water. Anything going into the bucket vanishes, to another world, the Pentagon, Michael Jackson's...

can u please tell me what i did wrong? A 70 Kg person stands at the back of a 200 Kg boat of length 4 m that floats on stationary water. he begins to walk toward the front of the boat. When he gets to the front how far back will the boat have moved? (neglect the resistance of water) The...

I've added a picture that's part of the problem. A sailboat race course consists of four legs defined by the displacement vectors A, B, C and D shown above. The values of the angles are È1 = 420, È2 = 410, and È3 = 270. The magnitudes of the first three vectors are A = 3.7 km, B = 5.3 km...