The equation y 4.9t 2 3.5t 2.4 relates the height y in meters to the elapsed time t in seconds for a ball thrown downward at 3.5 meters per second from a height of 2.4 meters from the ground In how many seconds will the ball hit the ground Express your answer as a decimal rounded to the nearest hundredth

Step-by-step explanation:

The vertical displacement function is , where is measured in meters and in seconds. Ball hits the ground when . That is:

Whose roots can be found by using the General Formula for Second-Order Polynomials:

Solutions of this polynomial are:

Only the first root is physically consistent.

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33

step-by-step explanation: g=6