2. In a blatant case of mimicry. a professor has attached a 100g mass to the end ofa spring and begun to spin with at the end of their outstretched arm, such that the spring is at angle of +500 below the horizontal. The professor's hand is 90cm from the center oftheir body. You know that the spring has an unstretched length of 10cm and a spring constant of ION/m. Determine how much the spring stretches when the mass is twirling at this angle and how many times the mass spins around in a complete circle in one minute. 3. A 70kg person is cliff diving. but into a snow bank that is 5 meters below the cliff. The diver hopes to burrow 6 meters into the snow upon impact. Assuming the snow exerts an average force of 600N on the person as they go through the snow, how fast will they need to run before going off the cliff to burrow through 6 meters of snow