A archer releases an arrow with an initial velocity of 30 feet per second at a height of 3 feet. The path the arrow takes
2 answers:
Answer:
1.97
Step-by-step explanation:
The arrow will hit the ground when the height is 0. We need to solve the quadratic equation:
Solving the quadratic equation gives two solutions −0.10 and 1.97 because we know the answer should be a positive number of seconds we can conclude that the object will hit the ground at 1.97 seconds.
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Answer: The density of the paper clips is 0.64 g/ml.
Step-by-step explanation:
Given : Volume of water = 10.0 mL
mass of water = 25.0 g
After 51 clips added to water , the total mass = 28 g
Total volume = 14.7
Mass of clips = total mass - mass of water
= 28 g-25g = 3g
Volume of clips = Total volume- Volume of water
= 14.7- 10.0 = 4.7 ml
Density of paper clips =
Hence, the density of the paper clips is 0.64 g/ml.