When are theories constructed?
1 answer:
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Answer:
d= 100m
Explanation:
Cheetah kinematic
The cheetah moves with uniformly accelerated movement, and the formulas that describe this movement are:
d= v₀*t + (1/2)*a*t² Formula (1)
vf²=v₀²+2*a*d Formula (2)
vf=v₀+a*t Formula (3)
Where:
d:distance in meters (m)
v₀: initial speed in m/s
vf: final speed in m/s
a: acceleration in m/s²
t: time in seconds (s)
Known Data
v₀ =0
a = 4.5 m/s²
vf= 30 m/s.
Problem development
We apply the formula (2) that has known data to calculate the distance :
vf²=v₀²+2*a*d
(30)²= 0 + 2* 4.5* d
d= 100m
By definition, the kinetic energy is given by:
Where,
m: mass
v: speed
Clearing the speed we have:
Substituting values:
Answer:
The jogger's velocity is:
v = 4.44 m / s
Where,
m: mass
v: speed
Clearing the speed we have:
Substituting values:
Answer:
The jogger's velocity is:
v = 4.44 m / s
Answer:
Explanation:
Given
Four Point charges are Placed at the corner of a square with side length a
Length of diagonal
Distance of charge from center
Potential at the center due to four charges is given by
as all the four charges are equal and placed symmetrical about center
Work done required to bring a fifth charge q from infinity to the center of the square