Use Newton's second law. The net force on the hero is
∑ <em>F</em> = <em>T</em> - <em>m g</em> = <em>m</em> (2.00 m/s²)
where
• <em>T</em> = tension in the rope
• <em>m</em> = 75.0 kg = mass of the hero
• <em>g</em> = 9.80 m/s² = acceleration due to gravity
Solve for <em>T</em> :
<em>T</em> = (75.0 kg)<em> </em>(<em>g</em> + 2.00 m/s²) = 885 N
Answer:
PE = 58.8,J
Explanation:
The potential energy at the top of ramp1 can be found by the application of the formula PE = mgh
Where PE =potential energy
m = mass of block = 2kg
g = acceleration due to gravity = 9.80m/s²
h = height of the top of the ramp from its bottom where the block is initially positioned = 3m
PE = 2×9.8×3 = 58.8J
Answer:
Inclined planes are simple machines used to make work easier. Ramps, ladders, and staircases are all inclined planes.
Explanation:
Answer:
C
Explanation:
There is a decrease in temperature and daylight and plants produce less food.
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The answer is having fewer neutrons than protons or electrons.
