Physics, 28.09.2019 16:30 jessicannoh5965
Acoin is tossed upward from an initial height of 7 m above the ground, with an initial speed of 7.4 m/s. the magnitude of the gravitational acceleration g = 9.8 m/s^2
take the point of release to be y0 = 0. choose upward as positive y direction. pay attention to the signs of position, velocity and acceleration.
keep 2 decimal places in all answers. a. find the coin’s maximum height in meters above the ground?
b. how long in seconds is the coin in the air? you need to set up a quadratic equation with time t. solve it for time t. only take the positive solution.
c. what is its speed in m/s when it hits the ground? note: speed has no sign, or always positive.
Answers: 2
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Acoin is tossed upward from an initial height of 7 m above the ground, with an initial speed of 7.4...
Computers and Technology, 25.10.2019 01:43
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