Answer:
The answer is below
Step-by-step explanation:
Motion shows the change in the position of an object over time. This change is showed in terms of displacement, distance, velocity, acceleration, time and speed. The equations of motion shows this relationship.
Since the soccer ball is kicked up with an initial velocity (u) of 15 m/s, the acceleration due to gravity (g) acts on the ball. If the ball is kicked at an angle Θ, the time t it takes for the ball to reach the ground is:
328 mg medicine is remaining in his system after four hours .
<u>Step-by-step explanation:</u>
Here we have , Josh ingests 800 mg of ibuprofen. His body metabolizes (uses up) 20% of the medicine per hour.We need to find How much medicine is remaining in his system after four hours .Let's find out:
According to question , Josh ingests 800 mg of ibuprofen and His body metabolizes (uses up) 20% of the medicine per hour . let amount of medicine left after 4 hours is x , So Amount of medicine left after 1 hour :
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Amount of medicine left after 2 hour :
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Amount of medicine left after 3 hour :
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Amount of medicine left after 4 hour :
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Therefore , 328 mg medicine is remaining in his system after four hours .