Step 1: Subtract 2x from both sides.
x−2x=2x−4−2x
−x=−4
Step 2: Divide both sides by -1.
−x−1=−4−1
x=4
Answer:
x=4
To solve for the time an object takes to hit the ground, the equation
<em>y</em> <em>= y₀ + v₀t + ½gt²</em>, or just <em>0 = y₀ +½gt²</em> since there is no initial velocity and the final y position is 0 (since it is on the ground). Therefore, <em>t = (−2y₀/g)^½.</em>
(-2*60/-9.8)^½ = 3.50 seconds.
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Answer: C
Step-by-step explanation:
