Hammer throw At the Rio Olympic Games on 15 August 2016, Anita Wlodarczyk of Poland broke her own world record in the hammer throw, recording a throw of 82.29 m to win the gold medal. For this problem, we will use g = 9.80 m/s, and we will also use the simplifying assumptions that the hammer was launched from ground level at a 45-degree angle, and that air resistance can be neglected. Just for background, the hammer for women is a 4.0 kg ball on the end of a wire - the other end of the wire has a handle on it. The athletes whirl the hammer around their heads, and then spin 3 or 4 times in a circle before releasing the hammer. The first two parts of this problem are a review of projectile motion. Part (a) Homework Answered Due Oct 10th, 12:15 PM Remembering that we're assuming a launch angle of 45, with what speed must Anita Wlodarczyk have launched the hammer in her record-breaking throw? m/s Type your numeric answer and submit 40.2 You are i 7 K Open in Part (b) Homework Unanswered Due Oct 10th, 12:15 PM Walking across the university athletic field one day, you find a hammer (not for pounding nails, but as described above!) that has been left behind by the track and field team's top female hammer thrower. You decide to give it a try. When you try it, it goes a distance of 22.0 m. Using the same assumptions as above, what was the launch speed when you launched it? m/s Type your numeric answer and submit Unanswered 5 attempts left Submit Now we'll bring in some circular motion. Here, we will ignore the gravitational force acting on the hammer (this actually makes very little difference to the final answer) and assume the hammer is swung in a horizontal circle of radius 1.70 m with the only force acting on the hammer being the tension force applied by the wire. We'll assume that tension force is completely horizontal and that is the force applied by you as you swing the hammer. Part (c) == Homework Unanswered Due Oct 10th, 12:15 PM Continuing from part (b), what is the tension force being applied to the hammer just before launch? N Type your numeric answer and submit Unanswered 5 attempts left Submit Now, we'll investigate whether there is any advantage to having longer arms. Someone with longer arms can spin the hammer in a circle with a larger radius. Use the same speed as you did in part (c), repeat the calculation with a radius of 1.80 m instead. See whether this person needs to apply more force, less force, or the same force as you did. Part (d) Part (d) == Homework Unanswered Due Oct 10th, 12:15 PM Repeat the previous calculation, but now with a radius of 1.80 m. In that case, what is the tension force being applied to the hammer just before launch? N Type your numeric answer and submit Unanswered 5 attempts left Submit Now, we'll investigate whether there is any advantage