can someone please help me with the questions of physics?
, I have done not from the physical Hola years. And I can not solve these. By could someone please direct me in a way you can begin to solve? Q # 1: How much force should be applied by a golf club to give a ball of 90 grams to stop and acceleration of 40 meters per second. I think it speaks Abu impulse or not the potential energy and kinetic energy? Q # 2: The vertical scale with 20 steps, 20 cm mounted Newton man 600 in a period of 15 seconds. Calculate the mechanical work and potential energy change during ascent. This confuses me the scale, the distance does not seem be 20 cm. Can someone please give me some advice? Thank you very much.
1. You wrote the acceleration = 40 m / Check again. Must be 40 meters / Second ^ 2 or 40 meters per second per second m = 90 g = 0.09 kg, a = 40 m / s ^ 2 F = ma = 0.09 * 40 Years N = N 2 3.6 3.6. h = 20 * 20 cm = 400 cm = 4 m = work change in potential energy = mgh = 600 * 4 = 2400 J Ans: 2400 J _________________.
TF2 Golf: Moneyshot (Flight of the Aurens)
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