The speed of Sammy, given that he expends 1750 J while jogging is 7.1 m/s
<h3>Data obtained from the question</h3>
- Mass (m) = 69.5 Kg
- Energy (E) = 1750 J
- Speed (v) =?
<h3>How to determine the speed</h3>
The speed of Samnmy can be obtained as illustrated below:
E = ½mv²
1750 = ½ × 69.5 × v²
1750 = 34.75 × v²
Divide both side by 34.75
v² = 1750 / 34.75
Take the square root of both side
v = √(1750 / 34.75)
v = 7.1 m/s
Thus, Sammy is moving with a speed of 7.1 m/s
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Answer:
14 s
Explanation:
Given:
v₀ = 19 m/s
a = -1.4 m/s²
v = 0 m/s
Find: t
v = at + v₀
(0 m/s) = (-1.4 m/s²) t + (19 m/s)
t ≈ 14 s
Answer:
32cm³
Explanation:
Given parameters:
Density of substance = 2.7g/cm³
Mass of substance = 86.4g
Unknown:
Volume of substance = ?
Solution:
Density is the mass per unit volume of a substance.
Density = 
Since the unknown is volume we solve for it;
mass = density x volume
86.4 = 2.7 x volume
volume = 
= 32cm³
Answer:
The marble as lost energy due to gravity, air resistance (if there is air), and the centripetal force when going around that loop.
Explanation:
Also a little in heat but that rly doesnt matter
Answer:
Explanation:
Position vector of the point of application of point of application of force is given as
now we have have force
now the moment of force is given as
