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A projectile is fired straight up at a speed of 10 m/s. How long does it take to reach the top of its motion? The acceleration due to gravity is 9.8 m/s^2. Answer in units of s.

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scme1702
We use the equation of motion:
v = u + at, v will be 0 at maximum height.
0 = 10 - 9.8t
t = 1.02 seconds

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