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A cannonball is shot into the air from the top of a tower. Its height above...

  1. A cannonball is shot into the air from the top of a tower. Its height above the ground, in metres, at any time t, in seconds, is given by the function h(t)=-4.9t2+50t+30.

    1. Find the average velocity of the cannonball from t = 1 to t = 2 seconds

    2. Use limits to find the instantaneous velocity of the cannonball at t = 6 seconds

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