Physics, 16.10.2019 02:10 FailingstudentXD
You throw a ball of mass 1 kg straight up. you observe that it takes 2.2 s to go up and down, returning to your hand. assuming we can neglect air resistance, the time it takes to go up to the top is half the total time, 1.1 s. note that at the top the momentum is momentarily zero, as it changes from heading upward to heading downward.(a) use the momentum principle to determine the speed that the ball had just after it left your hand. vinitial = ? ? m/s(b) use the energy principle to determine the maximum height above your hand reached by the ball. h = ? ? m
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Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.
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You throw a ball of mass 1 kg straight up. you observe that it takes 2.2 s to go up and down, return...
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